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      1 /*
      2  * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 2000 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Dirk Mueller (mueller (at) kde.org)
      5  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
      6  * Copyright (C) 2006 Graham Dennis (graham.dennis (at) gmail.com)
      7  *
      8  * This library is free software; you can redistribute it and/or
      9  * modify it under the terms of the GNU Library General Public
     10  * License as published by the Free Software Foundation; either
     11  * version 2 of the License, or (at your option) any later version.
     12  *
     13  * This library is distributed in the hope that it will be useful,
     14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     16  * Library General Public License for more details.
     17  *
     18  * You should have received a copy of the GNU Library General Public License
     19  * along with this library; see the file COPYING.LIB.  If not, write to
     20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     21  * Boston, MA 02110-1301, USA.
     22  *
     23  */
     24 
     25 #ifndef RenderStyle_h
     26 #define RenderStyle_h
     27 
     28 #include "core/CSSPropertyNames.h"
     29 #include "core/animation/css/CSSAnimationData.h"
     30 #include "core/animation/css/CSSTransitionData.h"
     31 #include "core/css/CSSLineBoxContainValue.h"
     32 #include "core/css/CSSPrimitiveValue.h"
     33 #include "core/rendering/style/BorderValue.h"
     34 #include "core/rendering/style/CounterDirectives.h"
     35 #include "core/rendering/style/DataRef.h"
     36 #include "core/rendering/style/LineClampValue.h"
     37 #include "core/rendering/style/NinePieceImage.h"
     38 #include "core/rendering/style/OutlineValue.h"
     39 #include "core/rendering/style/RenderStyleConstants.h"
     40 #include "core/rendering/style/SVGRenderStyle.h"
     41 #include "core/rendering/style/ShapeValue.h"
     42 #include "core/rendering/style/StyleBackgroundData.h"
     43 #include "core/rendering/style/StyleBoxData.h"
     44 #include "core/rendering/style/StyleDeprecatedFlexibleBoxData.h"
     45 #include "core/rendering/style/StyleDifference.h"
     46 #include "core/rendering/style/StyleFilterData.h"
     47 #include "core/rendering/style/StyleFlexibleBoxData.h"
     48 #include "core/rendering/style/StyleGridData.h"
     49 #include "core/rendering/style/StyleGridItemData.h"
     50 #include "core/rendering/style/StyleInheritedData.h"
     51 #include "core/rendering/style/StyleMarqueeData.h"
     52 #include "core/rendering/style/StyleMultiColData.h"
     53 #include "core/rendering/style/StyleRareInheritedData.h"
     54 #include "core/rendering/style/StyleRareNonInheritedData.h"
     55 #include "core/rendering/style/StyleReflection.h"
     56 #include "core/rendering/style/StyleSurroundData.h"
     57 #include "core/rendering/style/StyleTransformData.h"
     58 #include "core/rendering/style/StyleVisualData.h"
     59 #include "core/rendering/style/StyleWillChangeData.h"
     60 #include "platform/Length.h"
     61 #include "platform/LengthBox.h"
     62 #include "platform/LengthSize.h"
     63 #include "platform/ThemeTypes.h"
     64 #include "platform/fonts/FontBaseline.h"
     65 #include "platform/fonts/FontDescription.h"
     66 #include "platform/geometry/FloatRoundedRect.h"
     67 #include "platform/geometry/LayoutBoxExtent.h"
     68 #include "platform/geometry/RoundedRect.h"
     69 #include "platform/graphics/Color.h"
     70 #include "platform/graphics/GraphicsTypes.h"
     71 #include "platform/scroll/ScrollableArea.h"
     72 #include "platform/text/TextDirection.h"
     73 #include "platform/text/UnicodeBidi.h"
     74 #include "platform/transforms/TransformOperations.h"
     75 #include "wtf/Forward.h"
     76 #include "wtf/OwnPtr.h"
     77 #include "wtf/RefCounted.h"
     78 #include "wtf/StdLibExtras.h"
     79 #include "wtf/Vector.h"
     80 
     81 template<typename T, typename U> inline bool compareEqual(const T& t, const U& u) { return t == static_cast<T>(u); }
     82 
     83 #define SET_VAR(group, variable, value) \
     84     if (!compareEqual(group->variable, value)) \
     85         group.access()->variable = value
     86 
     87 #define SET_VAR_WITH_SETTER(group, getter, setter, value)    \
     88     if (!compareEqual(group->getter(), value)) \
     89         group.access()->setter(value)
     90 
     91 #define SET_BORDERVALUE_COLOR(group, variable, value) \
     92     if (!compareEqual(group->variable.color(), value)) \
     93         group.access()->variable.setColor(value)
     94 
     95 namespace blink {
     96 
     97 using std::max;
     98 
     99 class FilterOperations;
    100 
    101 class AppliedTextDecoration;
    102 class BorderData;
    103 struct BorderEdge;
    104 class CounterContent;
    105 class Font;
    106 class FontMetrics;
    107 class ShadowList;
    108 class StyleImage;
    109 class StyleInheritedData;
    110 class StyleResolver;
    111 class TransformationMatrix;
    112 
    113 class ContentData;
    114 
    115 typedef Vector<RefPtr<RenderStyle>, 4> PseudoStyleCache;
    116 
    117 class RenderStyle: public RefCounted<RenderStyle> {
    118     friend class AnimatedStyleBuilder; // Used by Web Animations CSS. Sets the color styles
    119     friend class CSSAnimatableValueFactory; // Used by Web Animations CSS. Gets visited and unvisited colors separately.
    120     friend class CSSPropertyEquality; // Used by CSS animations. We can't allow them to animate based off visited colors.
    121     friend class ApplyStyleCommand; // Editing has to only reveal unvisited info.
    122     friend class EditingStyle; // Editing has to only reveal unvisited info.
    123     friend class CSSComputedStyleDeclaration; // Ignores visited styles, so needs to be able to see unvisited info.
    124     friend class StyleBuilderFunctions; // Sets color styles
    125     friend class CachedUAStyle; // Saves Border/Background information for later comparison.
    126 
    127     // FIXME: When we stop resolving currentColor at style time, these can be removed.
    128     friend class CSSToStyleMap;
    129     friend class FilterOperationResolver;
    130     friend class StyleBuilderConverter;
    131     friend class StyleResolverState;
    132     friend class StyleResolver;
    133 protected:
    134 
    135     // non-inherited attributes
    136     DataRef<StyleBoxData> m_box;
    137     DataRef<StyleVisualData> visual;
    138     DataRef<StyleBackgroundData> m_background;
    139     DataRef<StyleSurroundData> surround;
    140     DataRef<StyleRareNonInheritedData> rareNonInheritedData;
    141 
    142     // inherited attributes
    143     DataRef<StyleRareInheritedData> rareInheritedData;
    144     DataRef<StyleInheritedData> inherited;
    145 
    146     // list of associated pseudo styles
    147     OwnPtr<PseudoStyleCache> m_cachedPseudoStyles;
    148 
    149     DataRef<SVGRenderStyle> m_svgStyle;
    150 
    151 // !START SYNC!: Keep this in sync with the copy constructor in RenderStyle.cpp and implicitlyInherited() in StyleResolver.cpp
    152 
    153     // inherit
    154     struct InheritedFlags {
    155         bool operator==(const InheritedFlags& other) const
    156         {
    157             return (_empty_cells == other._empty_cells)
    158                 && (_caption_side == other._caption_side)
    159                 && (_list_style_type == other._list_style_type)
    160                 && (_list_style_position == other._list_style_position)
    161                 && (_visibility == other._visibility)
    162                 && (_text_align == other._text_align)
    163                 && (_text_transform == other._text_transform)
    164                 && (m_textUnderline == other.m_textUnderline)
    165                 && (_cursor_style == other._cursor_style)
    166                 && (_direction == other._direction)
    167                 && (_white_space == other._white_space)
    168                 && (_border_collapse == other._border_collapse)
    169                 && (_box_direction == other._box_direction)
    170                 && (m_rtlOrdering == other.m_rtlOrdering)
    171                 && (m_printColorAdjust == other.m_printColorAdjust)
    172                 && (_pointerEvents == other._pointerEvents)
    173                 && (_insideLink == other._insideLink)
    174                 && (m_writingMode == other.m_writingMode);
    175         }
    176 
    177         bool operator!=(const InheritedFlags& other) const { return !(*this == other); }
    178 
    179         unsigned _empty_cells : 1; // EEmptyCell
    180         unsigned _caption_side : 2; // ECaptionSide
    181         unsigned _list_style_type : 7; // EListStyleType
    182         unsigned _list_style_position : 1; // EListStylePosition
    183         unsigned _visibility : 2; // EVisibility
    184         unsigned _text_align : 4; // ETextAlign
    185         unsigned _text_transform : 2; // ETextTransform
    186         unsigned m_textUnderline : 1;
    187         unsigned _cursor_style : 6; // ECursor
    188         unsigned _direction : 1; // TextDirection
    189         unsigned _white_space : 3; // EWhiteSpace
    190         unsigned _border_collapse : 1; // EBorderCollapse
    191         unsigned _box_direction : 1; // EBoxDirection (CSS3 box_direction property, flexible box layout module)
    192         // 32 bits
    193 
    194         // non CSS2 inherited
    195         unsigned m_rtlOrdering : 1; // Order
    196         unsigned m_printColorAdjust : PrintColorAdjustBits;
    197         unsigned _pointerEvents : 4; // EPointerEvents
    198         unsigned _insideLink : 2; // EInsideLink
    199 
    200         // CSS Text Layout Module Level 3: Vertical writing support
    201         unsigned m_writingMode : 2; // WritingMode
    202         // 42 bits
    203     } inherited_flags;
    204 
    205 // don't inherit
    206     struct NonInheritedFlags {
    207         bool operator==(const NonInheritedFlags& other) const
    208         {
    209             return effectiveDisplay == other.effectiveDisplay
    210                 && originalDisplay == other.originalDisplay
    211                 && overflowX == other.overflowX
    212                 && overflowY == other.overflowY
    213                 && verticalAlign == other.verticalAlign
    214                 && clear == other.clear
    215                 && position == other.position
    216                 && floating == other.floating
    217                 && tableLayout == other.tableLayout
    218                 && pageBreakBefore == other.pageBreakBefore
    219                 && pageBreakAfter == other.pageBreakAfter
    220                 && pageBreakInside == other.pageBreakInside
    221                 && styleType == other.styleType
    222                 && affectedByFocus == other.affectedByFocus
    223                 && affectedByHover == other.affectedByHover
    224                 && affectedByActive == other.affectedByActive
    225                 && affectedByDrag == other.affectedByDrag
    226                 && pseudoBits == other.pseudoBits
    227                 && unicodeBidi == other.unicodeBidi
    228                 && explicitInheritance == other.explicitInheritance
    229                 && unique == other.unique
    230                 && emptyState == other.emptyState
    231                 && firstChildState == other.firstChildState
    232                 && lastChildState == other.lastChildState
    233                 && isLink == other.isLink;
    234         }
    235 
    236         bool operator!=(const NonInheritedFlags& other) const { return !(*this == other); }
    237 
    238         unsigned effectiveDisplay : 5; // EDisplay
    239         unsigned originalDisplay : 5; // EDisplay
    240         unsigned overflowX : 3; // EOverflow
    241         unsigned overflowY : 3; // EOverflow
    242         unsigned verticalAlign : 4; // EVerticalAlign
    243         unsigned clear : 2; // EClear
    244         unsigned position : 3; // EPosition
    245         unsigned floating : 2; // EFloat
    246         unsigned tableLayout : 1; // ETableLayout
    247         unsigned unicodeBidi : 3; // EUnicodeBidi
    248 
    249         // This is set if we used viewport units when resolving a length.
    250         // It is mutable so we can pass around const RenderStyles to resolve lengths.
    251         mutable unsigned hasViewportUnits : 1;
    252 
    253         // 32 bits
    254 
    255         unsigned pageBreakBefore : 2; // EPageBreak
    256         unsigned pageBreakAfter : 2; // EPageBreak
    257         unsigned pageBreakInside : 2; // EPageBreak
    258 
    259         unsigned styleType : 6; // PseudoId
    260         unsigned pseudoBits : 8;
    261         unsigned explicitInheritance : 1; // Explicitly inherits a non-inherited property
    262         unsigned unique : 1; // Style can not be shared.
    263 
    264         unsigned emptyState : 1;
    265         unsigned firstChildState : 1;
    266         unsigned lastChildState : 1;
    267 
    268         unsigned affectedByFocus : 1;
    269         unsigned affectedByHover : 1;
    270         unsigned affectedByActive : 1;
    271         unsigned affectedByDrag : 1;
    272 
    273         unsigned isLink : 1;
    274         // If you add more style bits here, you will also need to update RenderStyle::copyNonInheritedFrom()
    275         // 62 bits
    276     } noninherited_flags;
    277 
    278 // !END SYNC!
    279 
    280 protected:
    281     void setBitDefaults()
    282     {
    283         inherited_flags._empty_cells = initialEmptyCells();
    284         inherited_flags._caption_side = initialCaptionSide();
    285         inherited_flags._list_style_type = initialListStyleType();
    286         inherited_flags._list_style_position = initialListStylePosition();
    287         inherited_flags._visibility = initialVisibility();
    288         inherited_flags._text_align = initialTextAlign();
    289         inherited_flags._text_transform = initialTextTransform();
    290         inherited_flags.m_textUnderline = false;
    291         inherited_flags._cursor_style = initialCursor();
    292         inherited_flags._direction = initialDirection();
    293         inherited_flags._white_space = initialWhiteSpace();
    294         inherited_flags._border_collapse = initialBorderCollapse();
    295         inherited_flags.m_rtlOrdering = initialRTLOrdering();
    296         inherited_flags._box_direction = initialBoxDirection();
    297         inherited_flags.m_printColorAdjust = initialPrintColorAdjust();
    298         inherited_flags._pointerEvents = initialPointerEvents();
    299         inherited_flags._insideLink = NotInsideLink;
    300         inherited_flags.m_writingMode = initialWritingMode();
    301 
    302         noninherited_flags.effectiveDisplay = noninherited_flags.originalDisplay = initialDisplay();
    303         noninherited_flags.overflowX = initialOverflowX();
    304         noninherited_flags.overflowY = initialOverflowY();
    305         noninherited_flags.verticalAlign = initialVerticalAlign();
    306         noninherited_flags.clear = initialClear();
    307         noninherited_flags.position = initialPosition();
    308         noninherited_flags.floating = initialFloating();
    309         noninherited_flags.tableLayout = initialTableLayout();
    310         noninherited_flags.unicodeBidi = initialUnicodeBidi();
    311         noninherited_flags.pageBreakBefore = initialPageBreak();
    312         noninherited_flags.pageBreakAfter = initialPageBreak();
    313         noninherited_flags.pageBreakInside = initialPageBreak();
    314         noninherited_flags.styleType = NOPSEUDO;
    315         noninherited_flags.pseudoBits = 0;
    316         noninherited_flags.explicitInheritance = false;
    317         noninherited_flags.unique = false;
    318         noninherited_flags.emptyState = false;
    319         noninherited_flags.firstChildState = false;
    320         noninherited_flags.lastChildState = false;
    321         noninherited_flags.hasViewportUnits = false;
    322         noninherited_flags.affectedByFocus = false;
    323         noninherited_flags.affectedByHover = false;
    324         noninherited_flags.affectedByActive = false;
    325         noninherited_flags.affectedByDrag = false;
    326         noninherited_flags.isLink = false;
    327     }
    328 
    329 private:
    330     ALWAYS_INLINE RenderStyle();
    331 
    332     enum DefaultStyleTag {
    333         DefaultStyle
    334     };
    335     ALWAYS_INLINE explicit RenderStyle(DefaultStyleTag);
    336     ALWAYS_INLINE RenderStyle(const RenderStyle&);
    337 
    338 public:
    339     static PassRefPtr<RenderStyle> create();
    340     static PassRefPtr<RenderStyle> createDefaultStyle();
    341     static PassRefPtr<RenderStyle> createAnonymousStyleWithDisplay(const RenderStyle* parentStyle, EDisplay);
    342     static PassRefPtr<RenderStyle> clone(const RenderStyle*);
    343 
    344     // Computes how the style change should be propagated down the tree.
    345     static StyleRecalcChange stylePropagationDiff(const RenderStyle* oldStyle, const RenderStyle* newStyle);
    346 
    347     StyleDifference visualInvalidationDiff(const RenderStyle&) const;
    348 
    349     enum IsAtShadowBoundary {
    350         AtShadowBoundary,
    351         NotAtShadowBoundary,
    352     };
    353 
    354     void inheritFrom(const RenderStyle* inheritParent, IsAtShadowBoundary = NotAtShadowBoundary);
    355     void copyNonInheritedFrom(const RenderStyle*);
    356 
    357     PseudoId styleType() const { return static_cast<PseudoId>(noninherited_flags.styleType); }
    358     void setStyleType(PseudoId styleType) { noninherited_flags.styleType = styleType; }
    359 
    360     RenderStyle* getCachedPseudoStyle(PseudoId) const;
    361     RenderStyle* addCachedPseudoStyle(PassRefPtr<RenderStyle>);
    362     void removeCachedPseudoStyle(PseudoId);
    363 
    364     const PseudoStyleCache* cachedPseudoStyles() const { return m_cachedPseudoStyles.get(); }
    365 
    366     void setHasViewportUnits(bool hasViewportUnits = true) const { noninherited_flags.hasViewportUnits = hasViewportUnits; }
    367     bool hasViewportUnits() const { return noninherited_flags.hasViewportUnits; }
    368 
    369     bool affectedByFocus() const { return noninherited_flags.affectedByFocus; }
    370     bool affectedByHover() const { return noninherited_flags.affectedByHover; }
    371     bool affectedByActive() const { return noninherited_flags.affectedByActive; }
    372     bool affectedByDrag() const { return noninherited_flags.affectedByDrag; }
    373 
    374     void setAffectedByFocus() { noninherited_flags.affectedByFocus = true; }
    375     void setAffectedByHover() { noninherited_flags.affectedByHover = true; }
    376     void setAffectedByActive() { noninherited_flags.affectedByActive = true; }
    377     void setAffectedByDrag() { noninherited_flags.affectedByDrag = true; }
    378 
    379     bool operator==(const RenderStyle& other) const;
    380     bool operator!=(const RenderStyle& other) const { return !(*this == other); }
    381     bool isFloating() const { return noninherited_flags.floating != NoFloat; }
    382     bool hasMargin() const { return surround->margin.nonZero(); }
    383     bool hasBorder() const { return surround->border.hasBorder(); }
    384     bool hasPadding() const { return surround->padding.nonZero(); }
    385     bool hasOffset() const { return surround->offset.nonZero(); }
    386     bool hasMarginBeforeQuirk() const { return marginBefore().quirk(); }
    387     bool hasMarginAfterQuirk() const { return marginAfter().quirk(); }
    388 
    389     bool hasBackgroundImage() const { return m_background->background().hasImage(); }
    390     bool hasFixedBackgroundImage() const { return m_background->background().hasFixedImage(); }
    391 
    392     bool hasEntirelyFixedBackground() const;
    393 
    394     bool hasAppearance() const { return appearance() != NoControlPart; }
    395 
    396     bool hasBackground() const
    397     {
    398         Color color = visitedDependentColor(CSSPropertyBackgroundColor);
    399         if (color.alpha())
    400             return true;
    401         return hasBackgroundImage();
    402     }
    403 
    404     LayoutBoxExtent imageOutsets(const NinePieceImage&) const;
    405     bool hasBorderImageOutsets() const
    406     {
    407         return borderImage().hasImage() && borderImage().outset().nonZero();
    408     }
    409     LayoutBoxExtent borderImageOutsets() const
    410     {
    411         return imageOutsets(borderImage());
    412     }
    413 
    414     LayoutBoxExtent maskBoxImageOutsets() const
    415     {
    416         return imageOutsets(maskBoxImage());
    417     }
    418 
    419     bool hasFilterOutsets() const { return hasFilter() && filter().hasOutsets(); }
    420     FilterOutsets filterOutsets() const { return hasFilter() ? filter().outsets() : FilterOutsets(); }
    421 
    422     Order rtlOrdering() const { return static_cast<Order>(inherited_flags.m_rtlOrdering); }
    423     void setRTLOrdering(Order o) { inherited_flags.m_rtlOrdering = o; }
    424 
    425     bool isStyleAvailable() const;
    426 
    427     bool hasAnyPublicPseudoStyles() const;
    428     bool hasPseudoStyle(PseudoId pseudo) const;
    429     void setHasPseudoStyle(PseudoId pseudo);
    430     bool hasUniquePseudoStyle() const;
    431     bool hasPseudoElementStyle() const;
    432 
    433     // attribute getter methods
    434 
    435     EDisplay display() const { return static_cast<EDisplay>(noninherited_flags.effectiveDisplay); }
    436     EDisplay originalDisplay() const { return static_cast<EDisplay>(noninherited_flags.originalDisplay); }
    437 
    438     const Length& left() const { return surround->offset.left(); }
    439     const Length& right() const { return surround->offset.right(); }
    440     const Length& top() const { return surround->offset.top(); }
    441     const Length& bottom() const { return surround->offset.bottom(); }
    442 
    443     // Accessors for positioned object edges that take into account writing mode.
    444     const Length& logicalLeft() const { return surround->offset.logicalLeft(writingMode()); }
    445     const Length& logicalRight() const { return surround->offset.logicalRight(writingMode()); }
    446     const Length& logicalTop() const { return surround->offset.before(writingMode()); }
    447     const Length& logicalBottom() const { return surround->offset.after(writingMode()); }
    448 
    449     // Whether or not a positioned element requires normal flow x/y to be computed
    450     // to determine its position.
    451     bool hasAutoLeftAndRight() const { return left().isAuto() && right().isAuto(); }
    452     bool hasAutoTopAndBottom() const { return top().isAuto() && bottom().isAuto(); }
    453     bool hasStaticInlinePosition(bool horizontal) const { return horizontal ? hasAutoLeftAndRight() : hasAutoTopAndBottom(); }
    454     bool hasStaticBlockPosition(bool horizontal) const { return horizontal ? hasAutoTopAndBottom() : hasAutoLeftAndRight(); }
    455 
    456     EPosition position() const { return static_cast<EPosition>(noninherited_flags.position); }
    457     bool hasOutOfFlowPosition() const { return position() == AbsolutePosition || position() == FixedPosition; }
    458     bool hasInFlowPosition() const { return position() == RelativePosition; }
    459     bool hasViewportConstrainedPosition() const { return position() == FixedPosition; }
    460     EFloat floating() const { return static_cast<EFloat>(noninherited_flags.floating); }
    461 
    462     const Length& width() const { return m_box->width(); }
    463     const Length& height() const { return m_box->height(); }
    464     const Length& minWidth() const { return m_box->minWidth(); }
    465     const Length& maxWidth() const { return m_box->maxWidth(); }
    466     const Length& minHeight() const { return m_box->minHeight(); }
    467     const Length& maxHeight() const { return m_box->maxHeight(); }
    468 
    469     const Length& logicalWidth() const { return isHorizontalWritingMode() ? width() : height(); }
    470     const Length& logicalHeight() const { return isHorizontalWritingMode() ? height() : width(); }
    471     const Length& logicalMinWidth() const { return isHorizontalWritingMode() ? minWidth() : minHeight(); }
    472     const Length& logicalMaxWidth() const { return isHorizontalWritingMode() ? maxWidth() : maxHeight(); }
    473     const Length& logicalMinHeight() const { return isHorizontalWritingMode() ? minHeight() : minWidth(); }
    474     const Length& logicalMaxHeight() const { return isHorizontalWritingMode() ? maxHeight() : maxWidth(); }
    475 
    476     const BorderData& border() const { return surround->border; }
    477     const BorderValue& borderLeft() const { return surround->border.left(); }
    478     const BorderValue& borderRight() const { return surround->border.right(); }
    479     const BorderValue& borderTop() const { return surround->border.top(); }
    480     const BorderValue& borderBottom() const { return surround->border.bottom(); }
    481 
    482     const BorderValue& borderBefore() const;
    483     const BorderValue& borderAfter() const;
    484     const BorderValue& borderStart() const;
    485     const BorderValue& borderEnd() const;
    486 
    487     const NinePieceImage& borderImage() const { return surround->border.image(); }
    488     StyleImage* borderImageSource() const { return surround->border.image().image(); }
    489     const LengthBox& borderImageSlices() const { return surround->border.image().imageSlices(); }
    490     const BorderImageLengthBox& borderImageWidth() const { return surround->border.image().borderSlices(); }
    491     const BorderImageLengthBox& borderImageOutset() const { return surround->border.image().outset(); }
    492 
    493     const LengthSize& borderTopLeftRadius() const { return surround->border.topLeft(); }
    494     const LengthSize& borderTopRightRadius() const { return surround->border.topRight(); }
    495     const LengthSize& borderBottomLeftRadius() const { return surround->border.bottomLeft(); }
    496     const LengthSize& borderBottomRightRadius() const { return surround->border.bottomRight(); }
    497     bool hasBorderRadius() const { return surround->border.hasBorderRadius(); }
    498 
    499     unsigned borderLeftWidth() const { return surround->border.borderLeftWidth(); }
    500     EBorderStyle borderLeftStyle() const { return surround->border.left().style(); }
    501     bool borderLeftIsTransparent() const { return surround->border.left().isTransparent(); }
    502     unsigned borderRightWidth() const { return surround->border.borderRightWidth(); }
    503     EBorderStyle borderRightStyle() const { return surround->border.right().style(); }
    504     bool borderRightIsTransparent() const { return surround->border.right().isTransparent(); }
    505     unsigned borderTopWidth() const { return surround->border.borderTopWidth(); }
    506     EBorderStyle borderTopStyle() const { return surround->border.top().style(); }
    507     bool borderTopIsTransparent() const { return surround->border.top().isTransparent(); }
    508     unsigned borderBottomWidth() const { return surround->border.borderBottomWidth(); }
    509     EBorderStyle borderBottomStyle() const { return surround->border.bottom().style(); }
    510     bool borderBottomIsTransparent() const { return surround->border.bottom().isTransparent(); }
    511 
    512     unsigned short borderBeforeWidth() const;
    513     unsigned short borderAfterWidth() const;
    514     unsigned short borderStartWidth() const;
    515     unsigned short borderEndWidth() const;
    516 
    517     unsigned short outlineSize() const { return max(0, outlineWidth() + outlineOffset()); }
    518     unsigned short outlineWidth() const
    519     {
    520         if (m_background->outline().style() == BNONE)
    521             return 0;
    522         return m_background->outline().width();
    523     }
    524     bool hasOutline() const { return outlineWidth() > 0 && outlineStyle() > BHIDDEN; }
    525     EBorderStyle outlineStyle() const { return m_background->outline().style(); }
    526     OutlineIsAuto outlineStyleIsAuto() const { return static_cast<OutlineIsAuto>(m_background->outline().isAuto()); }
    527 
    528     EOverflow overflowX() const { return static_cast<EOverflow>(noninherited_flags.overflowX); }
    529     EOverflow overflowY() const { return static_cast<EOverflow>(noninherited_flags.overflowY); }
    530     // It's sufficient to just check one direction, since it's illegal to have visible on only one overflow value.
    531     bool isOverflowVisible() const { ASSERT(overflowX() != OVISIBLE || overflowX() == overflowY()); return overflowX() == OVISIBLE; }
    532     bool isOverflowPaged() const { return overflowY() == OPAGEDX || overflowY() == OPAGEDY; }
    533 
    534     EVisibility visibility() const { return static_cast<EVisibility>(inherited_flags._visibility); }
    535     EVerticalAlign verticalAlign() const { return static_cast<EVerticalAlign>(noninherited_flags.verticalAlign); }
    536     const Length& verticalAlignLength() const { return m_box->verticalAlign(); }
    537 
    538     const Length& clipLeft() const { return visual->clip.left(); }
    539     const Length& clipRight() const { return visual->clip.right(); }
    540     const Length& clipTop() const { return visual->clip.top(); }
    541     const Length& clipBottom() const { return visual->clip.bottom(); }
    542     const LengthBox& clip() const { return visual->clip; }
    543     bool hasAutoClip() const { return visual->hasAutoClip; }
    544 
    545     EUnicodeBidi unicodeBidi() const { return static_cast<EUnicodeBidi>(noninherited_flags.unicodeBidi); }
    546 
    547     EClear clear() const { return static_cast<EClear>(noninherited_flags.clear); }
    548     ETableLayout tableLayout() const { return static_cast<ETableLayout>(noninherited_flags.tableLayout); }
    549     bool isFixedTableLayout() const { return tableLayout() == TFIXED && !logicalWidth().isAuto(); }
    550 
    551     const Font& font() const;
    552     const FontMetrics& fontMetrics() const;
    553     const FontDescription& fontDescription() const;
    554     float specifiedFontSize() const;
    555     float computedFontSize() const;
    556     int fontSize() const;
    557     FontWeight fontWeight() const;
    558     FontStretch fontStretch() const;
    559 
    560     float textAutosizingMultiplier() const { return inherited->textAutosizingMultiplier; }
    561 
    562     const Length& textIndent() const { return rareInheritedData->indent; }
    563     TextIndentLine textIndentLine() const { return static_cast<TextIndentLine>(rareInheritedData->m_textIndentLine); }
    564     TextIndentType textIndentType() const { return static_cast<TextIndentType>(rareInheritedData->m_textIndentType); }
    565     ETextAlign textAlign() const { return static_cast<ETextAlign>(inherited_flags._text_align); }
    566     TextAlignLast textAlignLast() const { return static_cast<TextAlignLast>(rareInheritedData->m_textAlignLast); }
    567     TextJustify textJustify() const { return static_cast<TextJustify>(rareInheritedData->m_textJustify); }
    568     ETextTransform textTransform() const { return static_cast<ETextTransform>(inherited_flags._text_transform); }
    569     TextDecoration textDecorationsInEffect() const;
    570     const Vector<AppliedTextDecoration>& appliedTextDecorations() const;
    571     TextDecoration textDecoration() const { return static_cast<TextDecoration>(visual->textDecoration); }
    572     TextUnderlinePosition textUnderlinePosition() const { return static_cast<TextUnderlinePosition>(rareInheritedData->m_textUnderlinePosition); }
    573     TextDecorationStyle textDecorationStyle() const { return static_cast<TextDecorationStyle>(rareNonInheritedData->m_textDecorationStyle); }
    574     float wordSpacing() const;
    575     float letterSpacing() const;
    576 
    577     float zoom() const { return visual->m_zoom; }
    578     float effectiveZoom() const { return rareInheritedData->m_effectiveZoom; }
    579 
    580     TextDirection direction() const { return static_cast<TextDirection>(inherited_flags._direction); }
    581     bool isLeftToRightDirection() const { return direction() == LTR; }
    582 
    583     const Length& specifiedLineHeight() const;
    584     Length lineHeight() const;
    585     int computedLineHeight() const;
    586 
    587     EWhiteSpace whiteSpace() const { return static_cast<EWhiteSpace>(inherited_flags._white_space); }
    588     static bool autoWrap(EWhiteSpace ws)
    589     {
    590         // Nowrap and pre don't automatically wrap.
    591         return ws != NOWRAP && ws != PRE;
    592     }
    593 
    594     bool autoWrap() const
    595     {
    596         return autoWrap(whiteSpace());
    597     }
    598 
    599     static bool preserveNewline(EWhiteSpace ws)
    600     {
    601         // Normal and nowrap do not preserve newlines.
    602         return ws != NORMAL && ws != NOWRAP;
    603     }
    604 
    605     bool preserveNewline() const
    606     {
    607         return preserveNewline(whiteSpace());
    608     }
    609 
    610     static bool collapseWhiteSpace(EWhiteSpace ws)
    611     {
    612         // Pre and prewrap do not collapse whitespace.
    613         return ws != PRE && ws != PRE_WRAP;
    614     }
    615 
    616     bool collapseWhiteSpace() const
    617     {
    618         return collapseWhiteSpace(whiteSpace());
    619     }
    620 
    621     bool isCollapsibleWhiteSpace(UChar c) const
    622     {
    623         switch (c) {
    624             case ' ':
    625             case '\t':
    626                 return collapseWhiteSpace();
    627             case '\n':
    628                 return !preserveNewline();
    629         }
    630         return false;
    631     }
    632 
    633     bool breakOnlyAfterWhiteSpace() const
    634     {
    635         return whiteSpace() == PRE_WRAP || lineBreak() == LineBreakAfterWhiteSpace;
    636     }
    637 
    638     bool breakWords() const
    639     {
    640         return wordBreak() == BreakWordBreak || overflowWrap() == BreakOverflowWrap;
    641     }
    642 
    643     EFillRepeat backgroundRepeatX() const { return static_cast<EFillRepeat>(m_background->background().repeatX()); }
    644     EFillRepeat backgroundRepeatY() const { return static_cast<EFillRepeat>(m_background->background().repeatY()); }
    645     CompositeOperator backgroundComposite() const { return static_cast<CompositeOperator>(m_background->background().composite()); }
    646     EFillAttachment backgroundAttachment() const { return static_cast<EFillAttachment>(m_background->background().attachment()); }
    647     EFillBox backgroundClip() const { return static_cast<EFillBox>(m_background->background().clip()); }
    648     EFillBox backgroundOrigin() const { return static_cast<EFillBox>(m_background->background().origin()); }
    649     const Length& backgroundXPosition() const { return m_background->background().xPosition(); }
    650     const Length& backgroundYPosition() const { return m_background->background().yPosition(); }
    651     EFillSizeType backgroundSizeType() const { return m_background->background().sizeType(); }
    652     const LengthSize& backgroundSizeLength() const { return m_background->background().sizeLength(); }
    653     FillLayer& accessBackgroundLayers() { return m_background.access()->m_background; }
    654     const FillLayer& backgroundLayers() const { return m_background->background(); }
    655 
    656     StyleImage* maskImage() const { return rareNonInheritedData->m_mask.image(); }
    657     EFillRepeat maskRepeatX() const { return static_cast<EFillRepeat>(rareNonInheritedData->m_mask.repeatX()); }
    658     EFillRepeat maskRepeatY() const { return static_cast<EFillRepeat>(rareNonInheritedData->m_mask.repeatY()); }
    659     CompositeOperator maskComposite() const { return static_cast<CompositeOperator>(rareNonInheritedData->m_mask.composite()); }
    660     EFillBox maskClip() const { return static_cast<EFillBox>(rareNonInheritedData->m_mask.clip()); }
    661     EFillBox maskOrigin() const { return static_cast<EFillBox>(rareNonInheritedData->m_mask.origin()); }
    662     const Length& maskXPosition() const { return rareNonInheritedData->m_mask.xPosition(); }
    663     const Length& maskYPosition() const { return rareNonInheritedData->m_mask.yPosition(); }
    664     EFillSizeType maskSizeType() const { return rareNonInheritedData->m_mask.sizeType(); }
    665     const LengthSize& maskSizeLength() const { return rareNonInheritedData->m_mask.sizeLength(); }
    666     FillLayer& accessMaskLayers() { return rareNonInheritedData.access()->m_mask; }
    667     const FillLayer& maskLayers() const { return rareNonInheritedData->m_mask; }
    668 
    669     const NinePieceImage& maskBoxImage() const { return rareNonInheritedData->m_maskBoxImage; }
    670     StyleImage* maskBoxImageSource() const { return rareNonInheritedData->m_maskBoxImage.image(); }
    671     const LengthBox& maskBoxImageSlices() const { return rareNonInheritedData->m_maskBoxImage.imageSlices(); }
    672     bool maskBoxImageSlicesFill() const { return rareNonInheritedData->m_maskBoxImage.fill(); }
    673     const BorderImageLengthBox& maskBoxImageWidth() const { return rareNonInheritedData->m_maskBoxImage.borderSlices(); }
    674     const BorderImageLengthBox& maskBoxImageOutset() const { return rareNonInheritedData->m_maskBoxImage.outset(); }
    675 
    676     EBorderCollapse borderCollapse() const { return static_cast<EBorderCollapse>(inherited_flags._border_collapse); }
    677     short horizontalBorderSpacing() const;
    678     short verticalBorderSpacing() const;
    679     EEmptyCell emptyCells() const { return static_cast<EEmptyCell>(inherited_flags._empty_cells); }
    680     ECaptionSide captionSide() const { return static_cast<ECaptionSide>(inherited_flags._caption_side); }
    681 
    682     EListStyleType listStyleType() const { return static_cast<EListStyleType>(inherited_flags._list_style_type); }
    683     StyleImage* listStyleImage() const;
    684     EListStylePosition listStylePosition() const { return static_cast<EListStylePosition>(inherited_flags._list_style_position); }
    685 
    686     const Length& marginTop() const { return surround->margin.top(); }
    687     const Length& marginBottom() const { return surround->margin.bottom(); }
    688     const Length& marginLeft() const { return surround->margin.left(); }
    689     const Length& marginRight() const { return surround->margin.right(); }
    690     const Length& marginBefore() const { return surround->margin.before(writingMode()); }
    691     const Length& marginAfter() const { return surround->margin.after(writingMode()); }
    692     const Length& marginStart() const { return surround->margin.start(writingMode(), direction()); }
    693     const Length& marginEnd() const { return surround->margin.end(writingMode(), direction()); }
    694     const Length& marginStartUsing(const RenderStyle* otherStyle) const { return surround->margin.start(otherStyle->writingMode(), otherStyle->direction()); }
    695     const Length& marginEndUsing(const RenderStyle* otherStyle) const { return surround->margin.end(otherStyle->writingMode(), otherStyle->direction()); }
    696     const Length& marginBeforeUsing(const RenderStyle* otherStyle) const { return surround->margin.before(otherStyle->writingMode()); }
    697     const Length& marginAfterUsing(const RenderStyle* otherStyle) const { return surround->margin.after(otherStyle->writingMode()); }
    698 
    699     const LengthBox& paddingBox() const { return surround->padding; }
    700     const Length& paddingTop() const { return surround->padding.top(); }
    701     const Length& paddingBottom() const { return surround->padding.bottom(); }
    702     const Length& paddingLeft() const { return surround->padding.left(); }
    703     const Length& paddingRight() const { return surround->padding.right(); }
    704     const Length& paddingBefore() const { return surround->padding.before(writingMode()); }
    705     const Length& paddingAfter() const { return surround->padding.after(writingMode()); }
    706     const Length& paddingStart() const { return surround->padding.start(writingMode(), direction()); }
    707     const Length& paddingEnd() const { return surround->padding.end(writingMode(), direction()); }
    708 
    709     ECursor cursor() const { return static_cast<ECursor>(inherited_flags._cursor_style); }
    710     CursorList* cursors() const { return rareInheritedData->cursorData.get(); }
    711 
    712     EInsideLink insideLink() const { return static_cast<EInsideLink>(inherited_flags._insideLink); }
    713     bool isLink() const { return noninherited_flags.isLink; }
    714 
    715     short widows() const { return rareInheritedData->widows; }
    716     short orphans() const { return rareInheritedData->orphans; }
    717     bool hasAutoWidows() const { return rareInheritedData->m_hasAutoWidows; }
    718     bool hasAutoOrphans() const { return rareInheritedData->m_hasAutoOrphans; }
    719     EPageBreak pageBreakInside() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakInside); }
    720     EPageBreak pageBreakBefore() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakBefore); }
    721     EPageBreak pageBreakAfter() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakAfter); }
    722 
    723     // CSS3 Getter Methods
    724 
    725     int outlineOffset() const
    726     {
    727         if (m_background->outline().style() == BNONE)
    728             return 0;
    729         return m_background->outline().offset();
    730     }
    731 
    732     ShadowList* textShadow() const { return rareInheritedData->textShadow.get(); }
    733     void getTextShadowExtent(LayoutUnit& top, LayoutUnit& right, LayoutUnit& bottom, LayoutUnit& left) const { getShadowExtent(textShadow(), top, right, bottom, left); }
    734     void getTextShadowHorizontalExtent(LayoutUnit& left, LayoutUnit& right) const { getShadowHorizontalExtent(textShadow(), left, right); }
    735     void getTextShadowVerticalExtent(LayoutUnit& top, LayoutUnit& bottom) const { getShadowVerticalExtent(textShadow(), top, bottom); }
    736     void getTextShadowInlineDirectionExtent(LayoutUnit& logicalLeft, LayoutUnit& logicalRight) { getShadowInlineDirectionExtent(textShadow(), logicalLeft, logicalRight); }
    737     void getTextShadowBlockDirectionExtent(LayoutUnit& logicalTop, LayoutUnit& logicalBottom) { getShadowBlockDirectionExtent(textShadow(), logicalTop, logicalBottom); }
    738 
    739     float textStrokeWidth() const { return rareInheritedData->textStrokeWidth; }
    740     float opacity() const { return rareNonInheritedData->opacity; }
    741     bool hasOpacity() const { return opacity() < 1.0f; }
    742     ControlPart appearance() const { return static_cast<ControlPart>(rareNonInheritedData->m_appearance); }
    743     // aspect ratio convenience method
    744     bool hasAspectRatio() const { return rareNonInheritedData->m_hasAspectRatio; }
    745     float aspectRatio() const { return aspectRatioNumerator() / aspectRatioDenominator(); }
    746     float aspectRatioDenominator() const { return rareNonInheritedData->m_aspectRatioDenominator; }
    747     float aspectRatioNumerator() const { return rareNonInheritedData->m_aspectRatioNumerator; }
    748     EBoxAlignment boxAlign() const { return static_cast<EBoxAlignment>(rareNonInheritedData->m_deprecatedFlexibleBox->align); }
    749     EBoxDirection boxDirection() const { return static_cast<EBoxDirection>(inherited_flags._box_direction); }
    750     float boxFlex() const { return rareNonInheritedData->m_deprecatedFlexibleBox->flex; }
    751     unsigned boxFlexGroup() const { return rareNonInheritedData->m_deprecatedFlexibleBox->flexGroup; }
    752     EBoxLines boxLines() const { return static_cast<EBoxLines>(rareNonInheritedData->m_deprecatedFlexibleBox->lines); }
    753     unsigned boxOrdinalGroup() const { return rareNonInheritedData->m_deprecatedFlexibleBox->ordinalGroup; }
    754     EBoxOrient boxOrient() const { return static_cast<EBoxOrient>(rareNonInheritedData->m_deprecatedFlexibleBox->orient); }
    755     EBoxPack boxPack() const { return static_cast<EBoxPack>(rareNonInheritedData->m_deprecatedFlexibleBox->pack); }
    756 
    757     int order() const { return rareNonInheritedData->m_order; }
    758     const Vector<String>& callbackSelectors() const { return rareNonInheritedData->m_callbackSelectors; }
    759     float flexGrow() const { return rareNonInheritedData->m_flexibleBox->m_flexGrow; }
    760     float flexShrink() const { return rareNonInheritedData->m_flexibleBox->m_flexShrink; }
    761     const Length& flexBasis() const { return rareNonInheritedData->m_flexibleBox->m_flexBasis; }
    762     EAlignContent alignContent() const { return static_cast<EAlignContent>(rareNonInheritedData->m_alignContent); }
    763     ItemPosition alignItems() const { return static_cast<ItemPosition>(rareNonInheritedData->m_alignItems); }
    764     OverflowAlignment alignItemsOverflowAlignment() const { return static_cast<OverflowAlignment>(rareNonInheritedData->m_alignItemsOverflowAlignment); }
    765     ItemPosition alignSelf() const { return static_cast<ItemPosition>(rareNonInheritedData->m_alignSelf); }
    766     OverflowAlignment alignSelfOverflowAlignment() const { return static_cast<OverflowAlignment>(rareNonInheritedData->m_alignSelfOverflowAlignment); }
    767     EFlexDirection flexDirection() const { return static_cast<EFlexDirection>(rareNonInheritedData->m_flexibleBox->m_flexDirection); }
    768     bool isColumnFlexDirection() const { return flexDirection() == FlowColumn || flexDirection() == FlowColumnReverse; }
    769     bool isReverseFlexDirection() const { return flexDirection() == FlowRowReverse || flexDirection() == FlowColumnReverse; }
    770     EFlexWrap flexWrap() const { return static_cast<EFlexWrap>(rareNonInheritedData->m_flexibleBox->m_flexWrap); }
    771     EJustifyContent justifyContent() const { return static_cast<EJustifyContent>(rareNonInheritedData->m_justifyContent); }
    772     ItemPosition justifyItems() const { return static_cast<ItemPosition>(rareNonInheritedData->m_justifyItems); }
    773     OverflowAlignment justifyItemsOverflowAlignment() const { return static_cast<OverflowAlignment>(rareNonInheritedData->m_justifyItemsOverflowAlignment); }
    774     ItemPositionType justifyItemsPositionType() const { return static_cast<ItemPositionType>(rareNonInheritedData->m_justifyItemsPositionType); }
    775     ItemPosition justifySelf() const { return static_cast<ItemPosition>(rareNonInheritedData->m_justifySelf); }
    776     OverflowAlignment justifySelfOverflowAlignment() const { return static_cast<OverflowAlignment>(rareNonInheritedData->m_justifySelfOverflowAlignment); }
    777 
    778     const Vector<GridTrackSize>& gridTemplateColumns() const { return rareNonInheritedData->m_grid->m_gridTemplateColumns; }
    779     const Vector<GridTrackSize>& gridTemplateRows() const { return rareNonInheritedData->m_grid->m_gridTemplateRows; }
    780     const NamedGridLinesMap& namedGridColumnLines() const { return rareNonInheritedData->m_grid->m_namedGridColumnLines; }
    781     const NamedGridLinesMap& namedGridRowLines() const { return rareNonInheritedData->m_grid->m_namedGridRowLines; }
    782     const OrderedNamedGridLines& orderedNamedGridColumnLines() const { return rareNonInheritedData->m_grid->m_orderedNamedGridColumnLines; }
    783     const OrderedNamedGridLines& orderedNamedGridRowLines() const { return rareNonInheritedData->m_grid->m_orderedNamedGridRowLines; }
    784     const NamedGridAreaMap& namedGridArea() const { return rareNonInheritedData->m_grid->m_namedGridArea; }
    785     size_t namedGridAreaRowCount() const { return rareNonInheritedData->m_grid->m_namedGridAreaRowCount; }
    786     size_t namedGridAreaColumnCount() const { return rareNonInheritedData->m_grid->m_namedGridAreaColumnCount; }
    787     GridAutoFlow gridAutoFlow() const { return static_cast<GridAutoFlow>(rareNonInheritedData->m_grid->m_gridAutoFlow); }
    788     bool isGridAutoFlowDirectionRow() const { return (rareNonInheritedData->m_grid->m_gridAutoFlow & InternalAutoFlowDirectionRow) == InternalAutoFlowDirectionRow; }
    789     bool isGridAutoFlowDirectionColumn() const { return (rareNonInheritedData->m_grid->m_gridAutoFlow & InternalAutoFlowDirectionColumn) == InternalAutoFlowDirectionColumn; }
    790     bool isGridAutoFlowAlgorithmSparse() const { return (rareNonInheritedData->m_grid->m_gridAutoFlow & InternalAutoFlowAlgorithmSparse) == InternalAutoFlowAlgorithmSparse; }
    791     bool isGridAutoFlowAlgorithmDense() const { return (rareNonInheritedData->m_grid->m_gridAutoFlow & InternalAutoFlowAlgorithmDense) == InternalAutoFlowAlgorithmDense; }
    792     bool isGridAutoFlowAlgorithmStack() const { return (rareNonInheritedData->m_grid->m_gridAutoFlow & InternalAutoFlowAlgorithmStack) == InternalAutoFlowAlgorithmStack; }
    793     const GridTrackSize& gridAutoColumns() const { return rareNonInheritedData->m_grid->m_gridAutoColumns; }
    794     const GridTrackSize& gridAutoRows() const { return rareNonInheritedData->m_grid->m_gridAutoRows; }
    795 
    796     const GridPosition& gridColumnStart() const { return rareNonInheritedData->m_gridItem->m_gridColumnStart; }
    797     const GridPosition& gridColumnEnd() const { return rareNonInheritedData->m_gridItem->m_gridColumnEnd; }
    798     const GridPosition& gridRowStart() const { return rareNonInheritedData->m_gridItem->m_gridRowStart; }
    799     const GridPosition& gridRowEnd() const { return rareNonInheritedData->m_gridItem->m_gridRowEnd; }
    800 
    801     ShadowList* boxShadow() const { return rareNonInheritedData->m_boxShadow.get(); }
    802     void getBoxShadowExtent(LayoutUnit& top, LayoutUnit& right, LayoutUnit& bottom, LayoutUnit& left) const { getShadowExtent(boxShadow(), top, right, bottom, left); }
    803     LayoutBoxExtent getBoxShadowInsetExtent() const { return getShadowInsetExtent(boxShadow()); }
    804     void getBoxShadowHorizontalExtent(LayoutUnit& left, LayoutUnit& right) const { getShadowHorizontalExtent(boxShadow(), left, right); }
    805     void getBoxShadowVerticalExtent(LayoutUnit& top, LayoutUnit& bottom) const { getShadowVerticalExtent(boxShadow(), top, bottom); }
    806     void getBoxShadowInlineDirectionExtent(LayoutUnit& logicalLeft, LayoutUnit& logicalRight) { getShadowInlineDirectionExtent(boxShadow(), logicalLeft, logicalRight); }
    807     void getBoxShadowBlockDirectionExtent(LayoutUnit& logicalTop, LayoutUnit& logicalBottom) { getShadowBlockDirectionExtent(boxShadow(), logicalTop, logicalBottom); }
    808 
    809     EBoxDecorationBreak boxDecorationBreak() const { return m_box->boxDecorationBreak(); }
    810     StyleReflection* boxReflect() const { return rareNonInheritedData->m_boxReflect.get(); }
    811     bool reflectionDataEquivalent(const RenderStyle* otherStyle) const { return rareNonInheritedData->reflectionDataEquivalent(*otherStyle->rareNonInheritedData); }
    812 
    813     // FIXME: reflections should belong to this helper function but they are currently handled
    814     // through their self-painting layers. So the rendering code doesn't account for them.
    815     bool hasVisualOverflowingEffect() const { return boxShadow() || hasBorderImageOutsets() || hasOutline(); }
    816 
    817     EBoxSizing boxSizing() const { return m_box->boxSizing(); }
    818     const Length& marqueeIncrement() const { return rareNonInheritedData->m_marquee->increment; }
    819     int marqueeSpeed() const { return rareNonInheritedData->m_marquee->speed; }
    820     int marqueeLoopCount() const { return rareNonInheritedData->m_marquee->loops; }
    821     EMarqueeBehavior marqueeBehavior() const { return static_cast<EMarqueeBehavior>(rareNonInheritedData->m_marquee->behavior); }
    822     EMarqueeDirection marqueeDirection() const { return static_cast<EMarqueeDirection>(rareNonInheritedData->m_marquee->direction); }
    823     EUserModify userModify() const { return static_cast<EUserModify>(rareInheritedData->userModify); }
    824     EUserDrag userDrag() const { return static_cast<EUserDrag>(rareNonInheritedData->userDrag); }
    825     EUserSelect userSelect() const { return static_cast<EUserSelect>(rareInheritedData->userSelect); }
    826     TextOverflow textOverflow() const { return static_cast<TextOverflow>(rareNonInheritedData->textOverflow); }
    827     EMarginCollapse marginBeforeCollapse() const { return static_cast<EMarginCollapse>(rareNonInheritedData->marginBeforeCollapse); }
    828     EMarginCollapse marginAfterCollapse() const { return static_cast<EMarginCollapse>(rareNonInheritedData->marginAfterCollapse); }
    829     EWordBreak wordBreak() const { return static_cast<EWordBreak>(rareInheritedData->wordBreak); }
    830     EOverflowWrap overflowWrap() const { return static_cast<EOverflowWrap>(rareInheritedData->overflowWrap); }
    831     LineBreak lineBreak() const { return static_cast<LineBreak>(rareInheritedData->lineBreak); }
    832     const AtomicString& highlight() const { return rareInheritedData->highlight; }
    833     const AtomicString& hyphenationString() const { return rareInheritedData->hyphenationString; }
    834     const AtomicString& locale() const { return rareInheritedData->locale; }
    835     EBorderFit borderFit() const { return static_cast<EBorderFit>(rareNonInheritedData->m_borderFit); }
    836     EResize resize() const { return static_cast<EResize>(rareInheritedData->resize); }
    837     bool hasInlinePaginationAxis() const
    838     {
    839         // If the pagination axis is parallel with the writing mode inline axis, columns may be laid
    840         // out along the inline axis, just like for regular multicol. Otherwise, we need to lay out
    841         // along the block axis.
    842         if (isOverflowPaged())
    843             return (overflowY() == OPAGEDX) == isHorizontalWritingMode();
    844         return false;
    845     }
    846     float columnWidth() const { return rareNonInheritedData->m_multiCol->m_width; }
    847     bool hasAutoColumnWidth() const { return rareNonInheritedData->m_multiCol->m_autoWidth; }
    848     unsigned short columnCount() const { return rareNonInheritedData->m_multiCol->m_count; }
    849     bool hasAutoColumnCount() const { return rareNonInheritedData->m_multiCol->m_autoCount; }
    850     bool specifiesColumns() const { return !hasAutoColumnCount() || !hasAutoColumnWidth(); }
    851     ColumnFill columnFill() const { return static_cast<ColumnFill>(rareNonInheritedData->m_multiCol->m_fill); }
    852     float columnGap() const { return rareNonInheritedData->m_multiCol->m_gap; }
    853     bool hasNormalColumnGap() const { return rareNonInheritedData->m_multiCol->m_normalGap; }
    854     EBorderStyle columnRuleStyle() const { return rareNonInheritedData->m_multiCol->m_rule.style(); }
    855     unsigned short columnRuleWidth() const { return rareNonInheritedData->m_multiCol->ruleWidth(); }
    856     bool columnRuleIsTransparent() const { return rareNonInheritedData->m_multiCol->m_rule.isTransparent(); }
    857     ColumnSpan columnSpan() const { return static_cast<ColumnSpan>(rareNonInheritedData->m_multiCol->m_columnSpan); }
    858     EPageBreak columnBreakBefore() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakBefore); }
    859     EPageBreak columnBreakInside() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakInside); }
    860     EPageBreak columnBreakAfter() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakAfter); }
    861     bool hasInlineTransform() const { return rareNonInheritedData->m_hasInlineTransform; }
    862     const TransformOperations& transform() const { return rareNonInheritedData->m_transform->m_operations; }
    863     const Length& transformOriginX() const { return rareNonInheritedData->m_transform->m_x; }
    864     const Length& transformOriginY() const { return rareNonInheritedData->m_transform->m_y; }
    865     float transformOriginZ() const { return rareNonInheritedData->m_transform->m_z; }
    866     bool hasTransform() const { return !rareNonInheritedData->m_transform->m_operations.operations().isEmpty(); }
    867     bool transformDataEquivalent(const RenderStyle& otherStyle) const { return rareNonInheritedData->m_transform == otherStyle.rareNonInheritedData->m_transform; }
    868 
    869     TextEmphasisFill textEmphasisFill() const { return static_cast<TextEmphasisFill>(rareInheritedData->textEmphasisFill); }
    870     TextEmphasisMark textEmphasisMark() const;
    871     const AtomicString& textEmphasisCustomMark() const { return rareInheritedData->textEmphasisCustomMark; }
    872     TextEmphasisPosition textEmphasisPosition() const { return static_cast<TextEmphasisPosition>(rareInheritedData->textEmphasisPosition); }
    873     const AtomicString& textEmphasisMarkString() const;
    874 
    875     RubyPosition rubyPosition() const { return static_cast<RubyPosition>(rareInheritedData->m_rubyPosition); }
    876 
    877     TextOrientation textOrientation() const { return static_cast<TextOrientation>(rareInheritedData->m_textOrientation); }
    878 
    879     ObjectFit objectFit() const { return static_cast<ObjectFit>(rareNonInheritedData->m_objectFit); }
    880     LengthPoint objectPosition() const { return rareNonInheritedData->m_objectPosition; }
    881 
    882     // Return true if any transform related property (currently transform, transformStyle3D or perspective)
    883     // indicates that we are transforming
    884     bool hasTransformRelatedProperty() const { return hasTransform() || preserves3D() || hasPerspective(); }
    885 
    886     enum ApplyTransformOrigin { IncludeTransformOrigin, ExcludeTransformOrigin };
    887     void applyTransform(TransformationMatrix&, const LayoutSize& borderBoxSize, ApplyTransformOrigin = IncludeTransformOrigin) const;
    888     void applyTransform(TransformationMatrix&, const FloatRect& boundingBox, ApplyTransformOrigin = IncludeTransformOrigin) const;
    889 
    890     bool hasMask() const { return rareNonInheritedData->m_mask.hasImage() || rareNonInheritedData->m_maskBoxImage.hasImage(); }
    891 
    892     TextCombine textCombine() const { return static_cast<TextCombine>(rareNonInheritedData->m_textCombine); }
    893     bool hasTextCombine() const { return textCombine() != TextCombineNone; }
    894 
    895     unsigned tabSize() const { return rareInheritedData->m_tabSize; }
    896 
    897     // End CSS3 Getters
    898 
    899     WrapFlow wrapFlow() const { return static_cast<WrapFlow>(rareNonInheritedData->m_wrapFlow); }
    900     WrapThrough wrapThrough() const { return static_cast<WrapThrough>(rareNonInheritedData->m_wrapThrough); }
    901 
    902     // Apple-specific property getter methods
    903     EPointerEvents pointerEvents() const { return static_cast<EPointerEvents>(inherited_flags._pointerEvents); }
    904     const CSSAnimationData* animations() const { return rareNonInheritedData->m_animations.get(); }
    905     const CSSTransitionData* transitions() const { return rareNonInheritedData->m_transitions.get(); }
    906 
    907     CSSAnimationData& accessAnimations();
    908     CSSTransitionData& accessTransitions();
    909 
    910     ETransformStyle3D transformStyle3D() const { return static_cast<ETransformStyle3D>(rareNonInheritedData->m_transformStyle3D); }
    911     bool preserves3D() const { return rareNonInheritedData->m_transformStyle3D == TransformStyle3DPreserve3D; }
    912 
    913     EBackfaceVisibility backfaceVisibility() const { return static_cast<EBackfaceVisibility>(rareNonInheritedData->m_backfaceVisibility); }
    914     float perspective() const { return rareNonInheritedData->m_perspective; }
    915     bool hasPerspective() const { return rareNonInheritedData->m_perspective > 0; }
    916     const Length& perspectiveOriginX() const { return rareNonInheritedData->m_perspectiveOriginX; }
    917     const Length& perspectiveOriginY() const { return rareNonInheritedData->m_perspectiveOriginY; }
    918     const LengthSize& pageSize() const { return rareNonInheritedData->m_pageSize; }
    919     PageSizeType pageSizeType() const { return static_cast<PageSizeType>(rareNonInheritedData->m_pageSizeType); }
    920 
    921     bool hasCurrentOpacityAnimation() const { return rareNonInheritedData->m_hasCurrentOpacityAnimation; }
    922     bool hasCurrentTransformAnimation() const { return rareNonInheritedData->m_hasCurrentTransformAnimation; }
    923     bool hasCurrentFilterAnimation() const { return rareNonInheritedData->m_hasCurrentFilterAnimation; }
    924     bool shouldCompositeForCurrentAnimations() { return hasCurrentOpacityAnimation() || hasCurrentTransformAnimation() || hasCurrentFilterAnimation(); }
    925 
    926     bool isRunningOpacityAnimationOnCompositor() const { return rareNonInheritedData->m_runningOpacityAnimationOnCompositor; }
    927     bool isRunningTransformAnimationOnCompositor() const { return rareNonInheritedData->m_runningTransformAnimationOnCompositor; }
    928     bool isRunningFilterAnimationOnCompositor() const { return rareNonInheritedData->m_runningFilterAnimationOnCompositor; }
    929     bool isRunningAnimationOnCompositor() { return isRunningOpacityAnimationOnCompositor() || isRunningTransformAnimationOnCompositor() || isRunningFilterAnimationOnCompositor(); }
    930 
    931     LineBoxContain lineBoxContain() const { return rareInheritedData->m_lineBoxContain; }
    932     const LineClampValue& lineClamp() const { return rareNonInheritedData->lineClamp; }
    933     Color tapHighlightColor() const { return rareInheritedData->tapHighlightColor; }
    934     ETextSecurity textSecurity() const { return static_cast<ETextSecurity>(rareInheritedData->textSecurity); }
    935 
    936     WritingMode writingMode() const { return static_cast<WritingMode>(inherited_flags.m_writingMode); }
    937     bool isHorizontalWritingMode() const { return blink::isHorizontalWritingMode(writingMode()); }
    938     bool isFlippedLinesWritingMode() const { return blink::isFlippedLinesWritingMode(writingMode()); }
    939     bool isFlippedBlocksWritingMode() const { return blink::isFlippedBlocksWritingMode(writingMode()); }
    940 
    941     EImageRendering imageRendering() const { return static_cast<EImageRendering>(rareInheritedData->m_imageRendering); }
    942 
    943     ESpeak speak() const { return static_cast<ESpeak>(rareInheritedData->speak); }
    944 
    945     FilterOperations& mutableFilter() { return rareNonInheritedData.access()->m_filter.access()->m_operations; }
    946     const FilterOperations& filter() const { return rareNonInheritedData->m_filter->m_operations; }
    947     bool hasFilter() const { return !rareNonInheritedData->m_filter->m_operations.operations().isEmpty(); }
    948 
    949     WebBlendMode blendMode() const;
    950     void setBlendMode(WebBlendMode v);
    951     bool hasBlendMode() const;
    952 
    953     EIsolation isolation() const;
    954     void setIsolation(EIsolation v);
    955     bool hasIsolation() const;
    956 
    957     bool shouldPlaceBlockDirectionScrollbarOnLogicalLeft() const { return !isLeftToRightDirection() && isHorizontalWritingMode(); }
    958 
    959     TouchAction touchAction() const { return static_cast<TouchAction>(rareNonInheritedData->m_touchAction); }
    960     TouchActionDelay touchActionDelay() const { return static_cast<TouchActionDelay>(rareInheritedData->m_touchActionDelay); }
    961 
    962     ScrollBehavior scrollBehavior() const { return static_cast<ScrollBehavior>(rareNonInheritedData->m_scrollBehavior); }
    963 
    964     const Vector<CSSPropertyID>& willChangeProperties() const { return rareNonInheritedData->m_willChange->m_properties; }
    965     bool willChangeContents() const { return rareNonInheritedData->m_willChange->m_contents; }
    966     bool willChangeScrollPosition() const { return rareNonInheritedData->m_willChange->m_scrollPosition; }
    967     bool hasWillChangeCompositingHint() const;
    968     bool subtreeWillChangeContents() const { return rareInheritedData->m_subtreeWillChangeContents; }
    969 
    970 // attribute setter methods
    971 
    972     void setDisplay(EDisplay v) { noninherited_flags.effectiveDisplay = v; }
    973     void setOriginalDisplay(EDisplay v) { noninherited_flags.originalDisplay = v; }
    974     void setPosition(EPosition v) { noninherited_flags.position = v; }
    975     void setFloating(EFloat v) { noninherited_flags.floating = v; }
    976 
    977     void setLeft(const Length& v) { SET_VAR(surround, offset.m_left, v); }
    978     void setRight(const Length& v) { SET_VAR(surround, offset.m_right, v); }
    979     void setTop(const Length& v) { SET_VAR(surround, offset.m_top, v); }
    980     void setBottom(const Length& v) { SET_VAR(surround, offset.m_bottom, v); }
    981 
    982     void setWidth(const Length& v) { SET_VAR(m_box, m_width, v); }
    983     void setHeight(const Length& v) { SET_VAR(m_box, m_height, v); }
    984 
    985     void setLogicalWidth(const Length& v)
    986     {
    987         if (isHorizontalWritingMode()) {
    988             SET_VAR(m_box, m_width, v);
    989         } else {
    990             SET_VAR(m_box, m_height, v);
    991         }
    992     }
    993 
    994     void setLogicalHeight(const Length& v)
    995     {
    996         if (isHorizontalWritingMode()) {
    997             SET_VAR(m_box, m_height, v);
    998         } else {
    999             SET_VAR(m_box, m_width, v);
   1000         }
   1001     }
   1002 
   1003     void setMinWidth(const Length& v) { SET_VAR(m_box, m_minWidth, v); }
   1004     void setMaxWidth(const Length& v) { SET_VAR(m_box, m_maxWidth, v); }
   1005     void setMinHeight(const Length& v) { SET_VAR(m_box, m_minHeight, v); }
   1006     void setMaxHeight(const Length& v) { SET_VAR(m_box, m_maxHeight, v); }
   1007 
   1008     DraggableRegionMode getDraggableRegionMode() const { return rareNonInheritedData->m_draggableRegionMode; }
   1009     void setDraggableRegionMode(DraggableRegionMode v) { SET_VAR(rareNonInheritedData, m_draggableRegionMode, v); }
   1010 
   1011     void resetBorder()
   1012     {
   1013         resetBorderImage();
   1014         resetBorderTop();
   1015         resetBorderRight();
   1016         resetBorderBottom();
   1017         resetBorderLeft();
   1018         resetBorderTopLeftRadius();
   1019         resetBorderTopRightRadius();
   1020         resetBorderBottomLeftRadius();
   1021         resetBorderBottomRightRadius();
   1022     }
   1023     void resetBorderTop() { SET_VAR(surround, border.m_top, BorderValue()); }
   1024     void resetBorderRight() { SET_VAR(surround, border.m_right, BorderValue()); }
   1025     void resetBorderBottom() { SET_VAR(surround, border.m_bottom, BorderValue()); }
   1026     void resetBorderLeft() { SET_VAR(surround, border.m_left, BorderValue()); }
   1027     void resetBorderImage() { SET_VAR(surround, border.m_image, NinePieceImage()); }
   1028     void resetBorderTopLeftRadius() { SET_VAR(surround, border.m_topLeft, initialBorderRadius()); }
   1029     void resetBorderTopRightRadius() { SET_VAR(surround, border.m_topRight, initialBorderRadius()); }
   1030     void resetBorderBottomLeftRadius() { SET_VAR(surround, border.m_bottomLeft, initialBorderRadius()); }
   1031     void resetBorderBottomRightRadius() { SET_VAR(surround, border.m_bottomRight, initialBorderRadius()); }
   1032 
   1033     void setBackgroundColor(const StyleColor& v) { SET_VAR(m_background, m_color, v); }
   1034 
   1035     void setBackgroundXPosition(const Length& length) { SET_VAR(m_background, m_background.m_xPosition, length); }
   1036     void setBackgroundYPosition(const Length& length) { SET_VAR(m_background, m_background.m_yPosition, length); }
   1037     void setBackgroundSize(EFillSizeType b) { SET_VAR(m_background, m_background.m_sizeType, b); }
   1038     void setBackgroundSizeLength(const LengthSize& s) { SET_VAR(m_background, m_background.m_sizeLength, s); }
   1039 
   1040     void setBorderImage(const NinePieceImage& b) { SET_VAR(surround, border.m_image, b); }
   1041     void setBorderImageSource(PassRefPtr<StyleImage>);
   1042     void setBorderImageSlices(const LengthBox&);
   1043     void setBorderImageWidth(const BorderImageLengthBox&);
   1044     void setBorderImageOutset(const BorderImageLengthBox&);
   1045 
   1046     void setBorderTopLeftRadius(const LengthSize& s) { SET_VAR(surround, border.m_topLeft, s); }
   1047     void setBorderTopRightRadius(const LengthSize& s) { SET_VAR(surround, border.m_topRight, s); }
   1048     void setBorderBottomLeftRadius(const LengthSize& s) { SET_VAR(surround, border.m_bottomLeft, s); }
   1049     void setBorderBottomRightRadius(const LengthSize& s) { SET_VAR(surround, border.m_bottomRight, s); }
   1050 
   1051     void setBorderRadius(const LengthSize& s)
   1052     {
   1053         setBorderTopLeftRadius(s);
   1054         setBorderTopRightRadius(s);
   1055         setBorderBottomLeftRadius(s);
   1056         setBorderBottomRightRadius(s);
   1057     }
   1058     void setBorderRadius(const IntSize& s)
   1059     {
   1060         setBorderRadius(LengthSize(Length(s.width(), Fixed), Length(s.height(), Fixed)));
   1061     }
   1062 
   1063     RoundedRect getRoundedBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge = true, bool includeLogicalRightEdge = true) const;
   1064     RoundedRect getRoundedInnerBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge = true, bool includeLogicalRightEdge = true) const;
   1065 
   1066     RoundedRect getRoundedInnerBorderFor(const LayoutRect& borderRect,
   1067         int topWidth, int bottomWidth, int leftWidth, int rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const;
   1068 
   1069     void setBorderLeftWidth(unsigned v) { SET_VAR(surround, border.m_left.m_width, v); }
   1070     void setBorderLeftStyle(EBorderStyle v) { SET_VAR(surround, border.m_left.m_style, v); }
   1071     void setBorderLeftColor(const StyleColor& v) { SET_BORDERVALUE_COLOR(surround, border.m_left, v); }
   1072     void setBorderRightWidth(unsigned v) { SET_VAR(surround, border.m_right.m_width, v); }
   1073     void setBorderRightStyle(EBorderStyle v) { SET_VAR(surround, border.m_right.m_style, v); }
   1074     void setBorderRightColor(const StyleColor& v) { SET_BORDERVALUE_COLOR(surround, border.m_right, v); }
   1075     void setBorderTopWidth(unsigned v) { SET_VAR(surround, border.m_top.m_width, v); }
   1076     void setBorderTopStyle(EBorderStyle v) { SET_VAR(surround, border.m_top.m_style, v); }
   1077     void setBorderTopColor(const StyleColor& v) { SET_BORDERVALUE_COLOR(surround, border.m_top, v); }
   1078     void setBorderBottomWidth(unsigned v) { SET_VAR(surround, border.m_bottom.m_width, v); }
   1079     void setBorderBottomStyle(EBorderStyle v) { SET_VAR(surround, border.m_bottom.m_style, v); }
   1080     void setBorderBottomColor(const StyleColor& v) { SET_BORDERVALUE_COLOR(surround, border.m_bottom, v); }
   1081 
   1082     void setOutlineWidth(unsigned short v) { SET_VAR(m_background, m_outline.m_width, v); }
   1083     void setOutlineStyleIsAuto(OutlineIsAuto isAuto) { SET_VAR(m_background, m_outline.m_isAuto, isAuto); }
   1084     void setOutlineStyle(EBorderStyle v) { SET_VAR(m_background, m_outline.m_style, v); }
   1085     void setOutlineColor(const StyleColor& v) { SET_BORDERVALUE_COLOR(m_background, m_outline, v); }
   1086     bool isOutlineEquivalent(const RenderStyle* otherStyle) const
   1087     {
   1088         // No other style, so we don't have an outline then we consider them to be the same.
   1089         if (!otherStyle)
   1090             return !hasOutline();
   1091         return m_background->outline().visuallyEqual(otherStyle->m_background->outline());
   1092     }
   1093     void setOutlineFromStyle(const RenderStyle& o)
   1094     {
   1095         ASSERT(!isOutlineEquivalent(&o));
   1096         m_background.access()->m_outline = o.m_background->m_outline;
   1097     }
   1098 
   1099     void setOverflowX(EOverflow v) { noninherited_flags.overflowX = v; }
   1100     void setOverflowY(EOverflow v) { noninherited_flags.overflowY = v; }
   1101     void setVisibility(EVisibility v) { inherited_flags._visibility = v; }
   1102     void setVerticalAlign(EVerticalAlign v) { noninherited_flags.verticalAlign = v; }
   1103     void setVerticalAlignLength(const Length& length) { setVerticalAlign(LENGTH); SET_VAR(m_box, m_verticalAlign, length); }
   1104 
   1105     void setHasAutoClip() { SET_VAR(visual, hasAutoClip, true); SET_VAR(visual, clip, RenderStyle::initialClip()); }
   1106     void setClip(const LengthBox& box) { SET_VAR(visual, hasAutoClip, false); SET_VAR(visual, clip, box); }
   1107 
   1108     void setUnicodeBidi(EUnicodeBidi b) { noninherited_flags.unicodeBidi = b; }
   1109 
   1110     void setClear(EClear v) { noninherited_flags.clear = v; }
   1111     void setTableLayout(ETableLayout v) { noninherited_flags.tableLayout = v; }
   1112 
   1113     bool setFontDescription(const FontDescription&);
   1114     // Only used for blending font sizes when animating and for text autosizing.
   1115     void setFontSize(float);
   1116     void setFontStretch(FontStretch);
   1117     void setFontWeight(FontWeight);
   1118 
   1119     void setTextAutosizingMultiplier(float v)
   1120     {
   1121         SET_VAR(inherited, textAutosizingMultiplier, v);
   1122         setFontSize(fontDescription().specifiedSize());
   1123     }
   1124 
   1125     void setColor(const Color&);
   1126     void setTextIndent(const Length& v) { SET_VAR(rareInheritedData, indent, v); }
   1127     void setTextIndentLine(TextIndentLine v) { SET_VAR(rareInheritedData, m_textIndentLine, v); }
   1128     void setTextIndentType(TextIndentType v) { SET_VAR(rareInheritedData, m_textIndentType, v); }
   1129     void setTextAlign(ETextAlign v) { inherited_flags._text_align = v; }
   1130     void setTextAlignLast(TextAlignLast v) { SET_VAR(rareInheritedData, m_textAlignLast, v); }
   1131     void setTextJustify(TextJustify v) { SET_VAR(rareInheritedData, m_textJustify, v); }
   1132     void setTextTransform(ETextTransform v) { inherited_flags._text_transform = v; }
   1133     void applyTextDecorations();
   1134     void clearAppliedTextDecorations();
   1135     void setTextDecoration(TextDecoration v) { SET_VAR(visual, textDecoration, v); }
   1136     void setTextUnderlinePosition(TextUnderlinePosition v) { SET_VAR(rareInheritedData, m_textUnderlinePosition, v); }
   1137     void setTextDecorationStyle(TextDecorationStyle v) { SET_VAR(rareNonInheritedData, m_textDecorationStyle, v); }
   1138     void setDirection(TextDirection v) { inherited_flags._direction = v; }
   1139     void setLineHeight(const Length& specifiedLineHeight);
   1140     bool setZoom(float);
   1141     bool setEffectiveZoom(float);
   1142 
   1143     void setImageRendering(EImageRendering v) { SET_VAR(rareInheritedData, m_imageRendering, v); }
   1144 
   1145     void setWhiteSpace(EWhiteSpace v) { inherited_flags._white_space = v; }
   1146 
   1147     // FIXME: Remove these two and replace them with respective FontBuilder calls.
   1148     void setWordSpacing(float);
   1149     void setLetterSpacing(float);
   1150 
   1151     void adjustBackgroundLayers()
   1152     {
   1153         if (backgroundLayers().next()) {
   1154             accessBackgroundLayers().cullEmptyLayers();
   1155             accessBackgroundLayers().fillUnsetProperties();
   1156         }
   1157     }
   1158 
   1159     void adjustMaskLayers()
   1160     {
   1161         if (maskLayers().next()) {
   1162             accessMaskLayers().cullEmptyLayers();
   1163             accessMaskLayers().fillUnsetProperties();
   1164         }
   1165     }
   1166 
   1167     void setMaskImage(PassRefPtr<StyleImage> v) { rareNonInheritedData.access()->m_mask.setImage(v); }
   1168 
   1169     void setMaskBoxImage(const NinePieceImage& b) { SET_VAR(rareNonInheritedData, m_maskBoxImage, b); }
   1170     void setMaskBoxImageSource(PassRefPtr<StyleImage> v) { rareNonInheritedData.access()->m_maskBoxImage.setImage(v); }
   1171     void setMaskBoxImageSlices(const LengthBox& slices)
   1172     {
   1173         rareNonInheritedData.access()->m_maskBoxImage.setImageSlices(slices);
   1174     }
   1175     void setMaskBoxImageSlicesFill(bool fill)
   1176     {
   1177         rareNonInheritedData.access()->m_maskBoxImage.setFill(fill);
   1178     }
   1179     void setMaskBoxImageWidth(const BorderImageLengthBox& slices)
   1180     {
   1181         rareNonInheritedData.access()->m_maskBoxImage.setBorderSlices(slices);
   1182     }
   1183     void setMaskBoxImageOutset(const BorderImageLengthBox& outset)
   1184     {
   1185         rareNonInheritedData.access()->m_maskBoxImage.setOutset(outset);
   1186     }
   1187     void setMaskXPosition(const Length& length) { SET_VAR(rareNonInheritedData, m_mask.m_xPosition, length); }
   1188     void setMaskYPosition(const Length& length) { SET_VAR(rareNonInheritedData, m_mask.m_yPosition, length); }
   1189     void setMaskSize(const LengthSize& s) { SET_VAR(rareNonInheritedData, m_mask.m_sizeLength, s); }
   1190 
   1191     void setBorderCollapse(EBorderCollapse collapse) { inherited_flags._border_collapse = collapse; }
   1192     void setHorizontalBorderSpacing(short);
   1193     void setVerticalBorderSpacing(short);
   1194     void setEmptyCells(EEmptyCell v) { inherited_flags._empty_cells = v; }
   1195     void setCaptionSide(ECaptionSide v) { inherited_flags._caption_side = v; }
   1196 
   1197     void setHasAspectRatio(bool b) { SET_VAR(rareNonInheritedData, m_hasAspectRatio, b); }
   1198     void setAspectRatioDenominator(float v) { SET_VAR(rareNonInheritedData, m_aspectRatioDenominator, v); }
   1199     void setAspectRatioNumerator(float v) { SET_VAR(rareNonInheritedData, m_aspectRatioNumerator, v); }
   1200 
   1201     void setListStyleType(EListStyleType v) { inherited_flags._list_style_type = v; }
   1202     void setListStyleImage(PassRefPtr<StyleImage>);
   1203     void setListStylePosition(EListStylePosition v) { inherited_flags._list_style_position = v; }
   1204 
   1205     void setMarginTop(const Length& v) { SET_VAR(surround, margin.m_top, v); }
   1206     void setMarginBottom(const Length& v) { SET_VAR(surround, margin.m_bottom, v); }
   1207     void setMarginLeft(const Length& v) { SET_VAR(surround, margin.m_left, v); }
   1208     void setMarginRight(const Length& v) { SET_VAR(surround, margin.m_right, v); }
   1209     void setMarginStart(const Length&);
   1210     void setMarginEnd(const Length&);
   1211 
   1212     void resetPadding() { SET_VAR(surround, padding, LengthBox(Auto)); }
   1213     void setPaddingBox(const LengthBox& b) { SET_VAR(surround, padding, b); }
   1214     void setPaddingTop(const Length& v) { SET_VAR(surround, padding.m_top, v); }
   1215     void setPaddingBottom(const Length& v) { SET_VAR(surround, padding.m_bottom, v); }
   1216     void setPaddingLeft(const Length& v) { SET_VAR(surround, padding.m_left, v); }
   1217     void setPaddingRight(const Length& v) { SET_VAR(surround, padding.m_right, v); }
   1218 
   1219     void setCursor(ECursor c) { inherited_flags._cursor_style = c; }
   1220     void addCursor(PassRefPtr<StyleImage>, const IntPoint& hotSpot = IntPoint());
   1221     void setCursorList(PassRefPtr<CursorList>);
   1222     void clearCursorList();
   1223 
   1224     void setInsideLink(EInsideLink insideLink) { inherited_flags._insideLink = insideLink; }
   1225     void setIsLink(bool b) { noninherited_flags.isLink = b; }
   1226 
   1227     PrintColorAdjust printColorAdjust() const { return static_cast<PrintColorAdjust>(inherited_flags.m_printColorAdjust); }
   1228     void setPrintColorAdjust(PrintColorAdjust value) { inherited_flags.m_printColorAdjust = value; }
   1229 
   1230     bool hasAutoZIndex() const { return m_box->hasAutoZIndex(); }
   1231     void setHasAutoZIndex() { SET_VAR(m_box, m_hasAutoZIndex, true); SET_VAR(m_box, m_zIndex, 0); }
   1232     int zIndex() const { return m_box->zIndex(); }
   1233     void setZIndex(int v) { SET_VAR(m_box, m_hasAutoZIndex, false); SET_VAR(m_box, m_zIndex, v); }
   1234 
   1235     void setHasAutoWidows() { SET_VAR(rareInheritedData, m_hasAutoWidows, true); SET_VAR(rareInheritedData, widows, initialWidows()); }
   1236     void setWidows(short w) { SET_VAR(rareInheritedData, m_hasAutoWidows, false); SET_VAR(rareInheritedData, widows, w); }
   1237 
   1238     void setHasAutoOrphans() { SET_VAR(rareInheritedData, m_hasAutoOrphans, true); SET_VAR(rareInheritedData, orphans, initialOrphans()); }
   1239     void setOrphans(short o) { SET_VAR(rareInheritedData, m_hasAutoOrphans, false); SET_VAR(rareInheritedData, orphans, o); }
   1240 
   1241     // For valid values of page-break-inside see http://www.w3.org/TR/CSS21/page.html#page-break-props
   1242     void setPageBreakInside(EPageBreak b) { ASSERT(b == PBAUTO || b == PBAVOID); noninherited_flags.pageBreakInside = b; }
   1243     void setPageBreakBefore(EPageBreak b) { noninherited_flags.pageBreakBefore = b; }
   1244     void setPageBreakAfter(EPageBreak b) { noninherited_flags.pageBreakAfter = b; }
   1245 
   1246     // CSS3 Setters
   1247     void setOutlineOffset(int v) { SET_VAR(m_background, m_outline.m_offset, v); }
   1248     void setTextShadow(PassRefPtr<ShadowList>);
   1249     void setTextStrokeColor(const StyleColor& c) { SET_VAR_WITH_SETTER(rareInheritedData, textStrokeColor, setTextStrokeColor, c); }
   1250     void setTextStrokeWidth(float w) { SET_VAR(rareInheritedData, textStrokeWidth, w); }
   1251     void setTextFillColor(const StyleColor& c) { SET_VAR_WITH_SETTER(rareInheritedData, textFillColor, setTextFillColor, c); }
   1252     void setOpacity(float f) { float v = clampTo<float>(f, 0, 1); SET_VAR(rareNonInheritedData, opacity, v); }
   1253     void setAppearance(ControlPart a) { SET_VAR(rareNonInheritedData, m_appearance, a); }
   1254     // For valid values of box-align see http://www.w3.org/TR/2009/WD-css3-flexbox-20090723/#alignment
   1255     void setBoxAlign(EBoxAlignment a) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, align, a); }
   1256     void setBoxDecorationBreak(EBoxDecorationBreak b) { SET_VAR(m_box, m_boxDecorationBreak, b); }
   1257     void setBoxDirection(EBoxDirection d) { inherited_flags._box_direction = d; }
   1258     void setBoxFlex(float f) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, flex, f); }
   1259     void setBoxFlexGroup(unsigned fg) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, flexGroup, fg); }
   1260     void setBoxLines(EBoxLines l) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, lines, l); }
   1261     void setBoxOrdinalGroup(unsigned og) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, ordinalGroup, og); }
   1262     void setBoxOrient(EBoxOrient o) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, orient, o); }
   1263     void setBoxPack(EBoxPack p) { SET_VAR(rareNonInheritedData.access()->m_deprecatedFlexibleBox, pack, p); }
   1264     void setBoxShadow(PassRefPtr<ShadowList>);
   1265     void setBoxReflect(PassRefPtr<StyleReflection> reflect) { if (rareNonInheritedData->m_boxReflect != reflect) rareNonInheritedData.access()->m_boxReflect = reflect; }
   1266     void setBoxSizing(EBoxSizing s) { SET_VAR(m_box, m_boxSizing, s); }
   1267     void setFlexGrow(float f) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexGrow, f); }
   1268     void setFlexShrink(float f) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexShrink, f); }
   1269     void setFlexBasis(const Length& length) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexBasis, length); }
   1270     // We restrict the smallest value to int min + 2 because we use int min and int min + 1 as special values in a hash set.
   1271     void setOrder(int o) { SET_VAR(rareNonInheritedData, m_order, max(std::numeric_limits<int>::min() + 2, o)); }
   1272     void addCallbackSelector(const String& selector);
   1273     void setAlignContent(EAlignContent p) { SET_VAR(rareNonInheritedData, m_alignContent, p); }
   1274     void setAlignItems(ItemPosition a) { SET_VAR(rareNonInheritedData, m_alignItems, a); }
   1275     void setAlignItemsOverflowAlignment(OverflowAlignment overflowAlignment) { SET_VAR(rareNonInheritedData, m_alignItemsOverflowAlignment, overflowAlignment); }
   1276     void setAlignSelf(ItemPosition a) { SET_VAR(rareNonInheritedData, m_alignSelf, a); }
   1277     void setAlignSelfOverflowAlignment(OverflowAlignment overflowAlignment) { SET_VAR(rareNonInheritedData, m_alignSelfOverflowAlignment, overflowAlignment); }
   1278     void setFlexDirection(EFlexDirection direction) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexDirection, direction); }
   1279     void setFlexWrap(EFlexWrap w) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexWrap, w); }
   1280     void setJustifyContent(EJustifyContent p) { SET_VAR(rareNonInheritedData, m_justifyContent, p); }
   1281     void setJustifyItems(ItemPosition justifyItems) { SET_VAR(rareNonInheritedData, m_justifyItems, justifyItems); }
   1282     void setJustifyItemsOverflowAlignment(OverflowAlignment overflowAlignment) { SET_VAR(rareNonInheritedData, m_justifyItemsOverflowAlignment, overflowAlignment); }
   1283     void setJustifyItemsPositionType(ItemPositionType positionType) { SET_VAR(rareNonInheritedData, m_justifyItemsPositionType, positionType); }
   1284     void setJustifySelf(ItemPosition justifySelf) { SET_VAR(rareNonInheritedData, m_justifySelf, justifySelf); }
   1285     void setJustifySelfOverflowAlignment(OverflowAlignment overflowAlignment) { SET_VAR(rareNonInheritedData, m_justifySelfOverflowAlignment, overflowAlignment); }
   1286     void setGridAutoColumns(const GridTrackSize& length) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoColumns, length); }
   1287     void setGridAutoRows(const GridTrackSize& length) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoRows, length); }
   1288     void setGridTemplateColumns(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridTemplateColumns, lengths); }
   1289     void setGridTemplateRows(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridTemplateRows, lengths); }
   1290     void setNamedGridColumnLines(const NamedGridLinesMap& namedGridColumnLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridColumnLines, namedGridColumnLines); }
   1291     void setNamedGridRowLines(const NamedGridLinesMap& namedGridRowLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridRowLines, namedGridRowLines); }
   1292     void setOrderedNamedGridColumnLines(const OrderedNamedGridLines& orderedNamedGridColumnLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_orderedNamedGridColumnLines, orderedNamedGridColumnLines); }
   1293     void setOrderedNamedGridRowLines(const OrderedNamedGridLines& orderedNamedGridRowLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_orderedNamedGridRowLines, orderedNamedGridRowLines); }
   1294     void setNamedGridArea(const NamedGridAreaMap& namedGridArea) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridArea, namedGridArea); }
   1295     void setNamedGridAreaRowCount(size_t rowCount) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridAreaRowCount, rowCount); }
   1296     void setNamedGridAreaColumnCount(size_t columnCount) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridAreaColumnCount, columnCount); }
   1297     void setGridAutoFlow(GridAutoFlow flow) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoFlow, flow); }
   1298 
   1299     void setGridColumnStart(const GridPosition& columnStartPosition) { SET_VAR(rareNonInheritedData.access()->m_gridItem, m_gridColumnStart, columnStartPosition); }
   1300     void setGridColumnEnd(const GridPosition& columnEndPosition) { SET_VAR(rareNonInheritedData.access()->m_gridItem, m_gridColumnEnd, columnEndPosition); }
   1301     void setGridRowStart(const GridPosition& rowStartPosition) { SET_VAR(rareNonInheritedData.access()->m_gridItem, m_gridRowStart, rowStartPosition); }
   1302     void setGridRowEnd(const GridPosition& rowEndPosition) { SET_VAR(rareNonInheritedData.access()->m_gridItem, m_gridRowEnd, rowEndPosition); }
   1303 
   1304     void setMarqueeIncrement(const Length& f) { SET_VAR(rareNonInheritedData.access()->m_marquee, increment, f); }
   1305     void setMarqueeSpeed(int f) { SET_VAR(rareNonInheritedData.access()->m_marquee, speed, f); }
   1306     void setMarqueeDirection(EMarqueeDirection d) { SET_VAR(rareNonInheritedData.access()->m_marquee, direction, d); }
   1307     void setMarqueeBehavior(EMarqueeBehavior b) { SET_VAR(rareNonInheritedData.access()->m_marquee, behavior, b); }
   1308     void setMarqueeLoopCount(int i) { SET_VAR(rareNonInheritedData.access()->m_marquee, loops, i); }
   1309     void setUserModify(EUserModify u) { SET_VAR(rareInheritedData, userModify, u); }
   1310     void setUserDrag(EUserDrag d) { SET_VAR(rareNonInheritedData, userDrag, d); }
   1311     void setUserSelect(EUserSelect s) { SET_VAR(rareInheritedData, userSelect, s); }
   1312     void setTextOverflow(TextOverflow overflow) { SET_VAR(rareNonInheritedData, textOverflow, overflow); }
   1313     void setMarginBeforeCollapse(EMarginCollapse c) { SET_VAR(rareNonInheritedData, marginBeforeCollapse, c); }
   1314     void setMarginAfterCollapse(EMarginCollapse c) { SET_VAR(rareNonInheritedData, marginAfterCollapse, c); }
   1315     void setWordBreak(EWordBreak b) { SET_VAR(rareInheritedData, wordBreak, b); }
   1316     void setOverflowWrap(EOverflowWrap b) { SET_VAR(rareInheritedData, overflowWrap, b); }
   1317     void setLineBreak(LineBreak b) { SET_VAR(rareInheritedData, lineBreak, b); }
   1318     void setHighlight(const AtomicString& h) { SET_VAR(rareInheritedData, highlight, h); }
   1319     void setHyphens(Hyphens h) { SET_VAR(rareInheritedData, hyphens, h); }
   1320     void setHyphenationString(const AtomicString& h) { SET_VAR(rareInheritedData, hyphenationString, h); }
   1321     void setLocale(const AtomicString& locale) { SET_VAR(rareInheritedData, locale, locale); }
   1322     void setBorderFit(EBorderFit b) { SET_VAR(rareNonInheritedData, m_borderFit, b); }
   1323     void setResize(EResize r) { SET_VAR(rareInheritedData, resize, r); }
   1324     void setColumnWidth(float f) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_autoWidth, false); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_width, f); }
   1325     void setHasAutoColumnWidth() { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_autoWidth, true); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_width, 0); }
   1326     void setColumnCount(unsigned short c) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_autoCount, false); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_count, c); }
   1327     void setHasAutoColumnCount() { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_autoCount, true); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_count, 0); }
   1328     void setColumnFill(ColumnFill columnFill) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_fill, columnFill); }
   1329     void setColumnGap(float f) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_normalGap, false); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_gap, f); }
   1330     void setHasNormalColumnGap() { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_normalGap, true); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_gap, 0); }
   1331     void setColumnRuleColor(const StyleColor& c) { SET_BORDERVALUE_COLOR(rareNonInheritedData.access()->m_multiCol, m_rule, c); }
   1332     void setColumnRuleStyle(EBorderStyle b) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_rule.m_style, b); }
   1333     void setColumnRuleWidth(unsigned short w) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_rule.m_width, w); }
   1334     void resetColumnRule() { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_rule, BorderValue()); }
   1335     void setColumnSpan(ColumnSpan columnSpan) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_columnSpan, columnSpan); }
   1336     void setColumnBreakBefore(EPageBreak p) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_breakBefore, p); }
   1337     // For valid values of column-break-inside see http://www.w3.org/TR/css3-multicol/#break-before-break-after-break-inside
   1338     void setColumnBreakInside(EPageBreak p) { ASSERT(p == PBAUTO || p == PBAVOID); SET_VAR(rareNonInheritedData.access()->m_multiCol, m_breakInside, p); }
   1339     void setColumnBreakAfter(EPageBreak p) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_breakAfter, p); }
   1340     void inheritColumnPropertiesFrom(RenderStyle* parent) { rareNonInheritedData.access()->m_multiCol = parent->rareNonInheritedData->m_multiCol; }
   1341     void setHasInlineTransform(bool b) { SET_VAR(rareNonInheritedData, m_hasInlineTransform, b); }
   1342     void setTransform(const TransformOperations& ops) { SET_VAR(rareNonInheritedData.access()->m_transform, m_operations, ops); }
   1343     void setTransformOriginX(const Length& l) { SET_VAR(rareNonInheritedData.access()->m_transform, m_x, l); }
   1344     void setTransformOriginY(const Length& l) { SET_VAR(rareNonInheritedData.access()->m_transform, m_y, l); }
   1345     void setTransformOriginZ(float f) { SET_VAR(rareNonInheritedData.access()->m_transform, m_z, f); }
   1346     void setSpeak(ESpeak s) { SET_VAR(rareInheritedData, speak, s); }
   1347     void setTextCombine(TextCombine v) { SET_VAR(rareNonInheritedData, m_textCombine, v); }
   1348     void setTextDecorationColor(const StyleColor& c) { SET_VAR(rareNonInheritedData, m_textDecorationColor, c); }
   1349     void setTextEmphasisColor(const StyleColor& c) { SET_VAR_WITH_SETTER(rareInheritedData, textEmphasisColor, setTextEmphasisColor, c); }
   1350     void setTextEmphasisFill(TextEmphasisFill fill) { SET_VAR(rareInheritedData, textEmphasisFill, fill); }
   1351     void setTextEmphasisMark(TextEmphasisMark mark) { SET_VAR(rareInheritedData, textEmphasisMark, mark); }
   1352     void setTextEmphasisCustomMark(const AtomicString& mark) { SET_VAR(rareInheritedData, textEmphasisCustomMark, mark); }
   1353     void setTextEmphasisPosition(TextEmphasisPosition position) { SET_VAR(rareInheritedData, textEmphasisPosition, position); }
   1354     bool setTextOrientation(TextOrientation);
   1355 
   1356     void setObjectFit(ObjectFit f) { SET_VAR(rareNonInheritedData, m_objectFit, f); }
   1357     void setObjectPosition(LengthPoint position) { SET_VAR(rareNonInheritedData, m_objectPosition, position); }
   1358 
   1359     void setRubyPosition(RubyPosition position) { SET_VAR(rareInheritedData, m_rubyPosition, position); }
   1360 
   1361     void setFilter(const FilterOperations& ops) { SET_VAR(rareNonInheritedData.access()->m_filter, m_operations, ops); }
   1362 
   1363     void setTabSize(unsigned size) { SET_VAR(rareInheritedData, m_tabSize, size); }
   1364 
   1365     // End CSS3 Setters
   1366 
   1367     void setWrapFlow(WrapFlow wrapFlow) { SET_VAR(rareNonInheritedData, m_wrapFlow, wrapFlow); }
   1368     void setWrapThrough(WrapThrough wrapThrough) { SET_VAR(rareNonInheritedData, m_wrapThrough, wrapThrough); }
   1369 
   1370     // Apple-specific property setters
   1371     void setPointerEvents(EPointerEvents p) { inherited_flags._pointerEvents = p; }
   1372 
   1373     void clearAnimations()
   1374     {
   1375         rareNonInheritedData.access()->m_animations.clear();
   1376     }
   1377 
   1378     void clearTransitions()
   1379     {
   1380         rareNonInheritedData.access()->m_transitions.clear();
   1381     }
   1382 
   1383     void setTransformStyle3D(ETransformStyle3D b) { SET_VAR(rareNonInheritedData, m_transformStyle3D, b); }
   1384     void setBackfaceVisibility(EBackfaceVisibility b) { SET_VAR(rareNonInheritedData, m_backfaceVisibility, b); }
   1385     void setPerspective(float p) { SET_VAR(rareNonInheritedData, m_perspective, p); }
   1386     void setPerspectiveOriginX(const Length& l) { SET_VAR(rareNonInheritedData, m_perspectiveOriginX, l); }
   1387     void setPerspectiveOriginY(const Length& l) { SET_VAR(rareNonInheritedData, m_perspectiveOriginY, l); }
   1388     void setPageSize(const LengthSize& s) { SET_VAR(rareNonInheritedData, m_pageSize, s); }
   1389     void setPageSizeType(PageSizeType t) { SET_VAR(rareNonInheritedData, m_pageSizeType, t); }
   1390     void resetPageSizeType() { SET_VAR(rareNonInheritedData, m_pageSizeType, PAGE_SIZE_AUTO); }
   1391 
   1392     void setHasCurrentOpacityAnimation(bool b = true) { SET_VAR(rareNonInheritedData, m_hasCurrentOpacityAnimation, b); }
   1393     void setHasCurrentTransformAnimation(bool b = true) { SET_VAR(rareNonInheritedData, m_hasCurrentTransformAnimation, b); }
   1394     void setHasCurrentFilterAnimation(bool b = true) { SET_VAR(rareNonInheritedData, m_hasCurrentFilterAnimation, b); }
   1395 
   1396     void setIsRunningOpacityAnimationOnCompositor(bool b = true) { SET_VAR(rareNonInheritedData, m_runningOpacityAnimationOnCompositor, b); }
   1397     void setIsRunningTransformAnimationOnCompositor(bool b = true) { SET_VAR(rareNonInheritedData, m_runningTransformAnimationOnCompositor, b); }
   1398     void setIsRunningFilterAnimationOnCompositor(bool b = true) { SET_VAR(rareNonInheritedData, m_runningFilterAnimationOnCompositor, b); }
   1399 
   1400     void setLineBoxContain(LineBoxContain c) { SET_VAR(rareInheritedData, m_lineBoxContain, c); }
   1401     void setLineClamp(LineClampValue c) { SET_VAR(rareNonInheritedData, lineClamp, c); }
   1402     void setTapHighlightColor(const Color& c) { SET_VAR(rareInheritedData, tapHighlightColor, c); }
   1403     void setTextSecurity(ETextSecurity aTextSecurity) { SET_VAR(rareInheritedData, textSecurity, aTextSecurity); }
   1404     void setTouchAction(TouchAction t) { SET_VAR(rareNonInheritedData, m_touchAction, t); }
   1405     void setTouchActionDelay(TouchActionDelay t) { SET_VAR(rareInheritedData, m_touchActionDelay, t); }
   1406 
   1407     void setScrollBehavior(ScrollBehavior b) { SET_VAR(rareNonInheritedData, m_scrollBehavior, b); }
   1408 
   1409     void setWillChangeProperties(const Vector<CSSPropertyID>& properties) { SET_VAR(rareNonInheritedData.access()->m_willChange, m_properties, properties); }
   1410     void setWillChangeContents(bool b) { SET_VAR(rareNonInheritedData.access()->m_willChange, m_contents, b); }
   1411     void setWillChangeScrollPosition(bool b) { SET_VAR(rareNonInheritedData.access()->m_willChange, m_scrollPosition, b); }
   1412     void setSubtreeWillChangeContents(bool b) { SET_VAR(rareInheritedData, m_subtreeWillChangeContents, b); }
   1413 
   1414     bool requiresAcceleratedCompositingForExternalReasons(bool b) { return rareNonInheritedData->m_requiresAcceleratedCompositingForExternalReasons; }
   1415     void setRequiresAcceleratedCompositingForExternalReasons(bool b) { SET_VAR(rareNonInheritedData, m_requiresAcceleratedCompositingForExternalReasons, b); }
   1416 
   1417     const SVGRenderStyle& svgStyle() const { return *m_svgStyle.get(); }
   1418     SVGRenderStyle& accessSVGStyle() { return *m_svgStyle.access(); }
   1419 
   1420     const SVGPaintType& fillPaintType() const { return svgStyle().fillPaintType(); }
   1421     Color fillPaintColor() const { return svgStyle().fillPaintColor(); }
   1422     float fillOpacity() const { return svgStyle().fillOpacity(); }
   1423     void setFillOpacity(float f) { accessSVGStyle().setFillOpacity(f); }
   1424 
   1425     const SVGPaintType& strokePaintType() const { return svgStyle().strokePaintType(); }
   1426     Color strokePaintColor() const { return svgStyle().strokePaintColor(); }
   1427     float strokeOpacity() const { return svgStyle().strokeOpacity(); }
   1428     void setStrokeOpacity(float f) { accessSVGStyle().setStrokeOpacity(f); }
   1429     SVGLength* strokeWidth() const { return svgStyle().strokeWidth(); }
   1430     void setStrokeWidth(PassRefPtr<SVGLength> w) { accessSVGStyle().setStrokeWidth(w); }
   1431     SVGLengthList* strokeDashArray() const { return svgStyle().strokeDashArray(); }
   1432     void setStrokeDashArray(PassRefPtr<SVGLengthList> array) { accessSVGStyle().setStrokeDashArray(array); }
   1433     SVGLength* strokeDashOffset() const { return svgStyle().strokeDashOffset(); }
   1434     void setStrokeDashOffset(PassRefPtr<SVGLength> d) { accessSVGStyle().setStrokeDashOffset(d); }
   1435     float strokeMiterLimit() const { return svgStyle().strokeMiterLimit(); }
   1436     void setStrokeMiterLimit(float f) { accessSVGStyle().setStrokeMiterLimit(f); }
   1437 
   1438     float floodOpacity() const { return svgStyle().floodOpacity(); }
   1439     void setFloodOpacity(float f) { accessSVGStyle().setFloodOpacity(f); }
   1440 
   1441     float stopOpacity() const { return svgStyle().stopOpacity(); }
   1442     void setStopOpacity(float f) { accessSVGStyle().setStopOpacity(f); }
   1443 
   1444     void setStopColor(const Color& c) { accessSVGStyle().setStopColor(c); }
   1445     void setFloodColor(const Color& c) { accessSVGStyle().setFloodColor(c); }
   1446     void setLightingColor(const Color& c) { accessSVGStyle().setLightingColor(c); }
   1447 
   1448     SVGLength* baselineShiftValue() const { return svgStyle().baselineShiftValue(); }
   1449     void setBaselineShiftValue(PassRefPtr<SVGLength> s) { accessSVGStyle().setBaselineShiftValue(s); }
   1450 
   1451     void setShapeOutside(PassRefPtr<ShapeValue> value)
   1452     {
   1453         if (rareNonInheritedData->m_shapeOutside == value)
   1454             return;
   1455         rareNonInheritedData.access()->m_shapeOutside = value;
   1456     }
   1457     ShapeValue* shapeOutside() const { return rareNonInheritedData->m_shapeOutside.get(); }
   1458 
   1459     static ShapeValue* initialShapeOutside() { return 0; }
   1460 
   1461     void setClipPath(PassRefPtr<ClipPathOperation> operation)
   1462     {
   1463         if (rareNonInheritedData->m_clipPath != operation)
   1464             rareNonInheritedData.access()->m_clipPath = operation;
   1465     }
   1466     ClipPathOperation* clipPath() const { return rareNonInheritedData->m_clipPath.get(); }
   1467 
   1468     static ClipPathOperation* initialClipPath() { return 0; }
   1469 
   1470     const Length& shapeMargin() const { return rareNonInheritedData->m_shapeMargin; }
   1471     void setShapeMargin(const Length& shapeMargin) { SET_VAR(rareNonInheritedData, m_shapeMargin, shapeMargin); }
   1472     static Length initialShapeMargin() { return Length(0, Fixed); }
   1473 
   1474     float shapeImageThreshold() const { return rareNonInheritedData->m_shapeImageThreshold; }
   1475     void setShapeImageThreshold(float shapeImageThreshold)
   1476     {
   1477         float clampedShapeImageThreshold = clampTo<float>(shapeImageThreshold, 0, 1);
   1478         SET_VAR(rareNonInheritedData, m_shapeImageThreshold, clampedShapeImageThreshold);
   1479     }
   1480     static float initialShapeImageThreshold() { return 0; }
   1481 
   1482     bool hasContent() const { return contentData(); }
   1483     const ContentData* contentData() const { return rareNonInheritedData->m_content.get(); }
   1484     bool contentDataEquivalent(const RenderStyle* otherStyle) const { return const_cast<RenderStyle*>(this)->rareNonInheritedData->contentDataEquivalent(*const_cast<RenderStyle*>(otherStyle)->rareNonInheritedData); }
   1485     void clearContent();
   1486     void setContent(const String&, bool add = false);
   1487     void setContent(PassRefPtr<StyleImage>, bool add = false);
   1488     void setContent(PassOwnPtr<CounterContent>, bool add = false);
   1489     void setContent(QuoteType, bool add = false);
   1490 
   1491     const CounterDirectiveMap* counterDirectives() const;
   1492     CounterDirectiveMap& accessCounterDirectives();
   1493     const CounterDirectives getCounterDirectives(const AtomicString& identifier) const;
   1494 
   1495     QuotesData* quotes() const { return rareInheritedData->quotes.get(); }
   1496     void setQuotes(PassRefPtr<QuotesData>);
   1497 
   1498     const AtomicString& hyphenString() const;
   1499 
   1500     bool inheritedNotEqual(const RenderStyle*) const;
   1501     bool inheritedDataShared(const RenderStyle*) const;
   1502 
   1503     bool isDisplayReplacedType() const { return isDisplayReplacedType(display()); }
   1504     bool isDisplayInlineType() const { return isDisplayInlineType(display()); }
   1505     bool isOriginalDisplayInlineType() const { return isDisplayInlineType(originalDisplay()); }
   1506     bool isDisplayFlexibleOrGridBox() const { return isDisplayFlexibleBox(display()) || isDisplayGridBox(display()); }
   1507 
   1508 
   1509     bool setWritingMode(WritingMode v)
   1510     {
   1511         if (v == writingMode())
   1512             return false;
   1513 
   1514         inherited_flags.m_writingMode = v;
   1515         return true;
   1516     }
   1517 
   1518     // A unique style is one that has matches something that makes it impossible to share.
   1519     bool unique() const { return noninherited_flags.unique; }
   1520     void setUnique() { noninherited_flags.unique = true; }
   1521 
   1522     bool isSharable() const;
   1523 
   1524     bool emptyState() const { return noninherited_flags.emptyState; }
   1525     void setEmptyState(bool b) { setUnique(); noninherited_flags.emptyState = b; }
   1526     bool firstChildState() const { return noninherited_flags.firstChildState; }
   1527     void setFirstChildState() { setUnique(); noninherited_flags.firstChildState = true; }
   1528     bool lastChildState() const { return noninherited_flags.lastChildState; }
   1529     void setLastChildState() { setUnique(); noninherited_flags.lastChildState = true; }
   1530 
   1531     StyleColor visitedDependentDecorationStyleColor() const;
   1532     Color visitedDependentDecorationColor() const;
   1533     Color visitedDependentColor(int colorProperty) const;
   1534 
   1535     void setHasExplicitlyInheritedProperties() { noninherited_flags.explicitInheritance = true; }
   1536     bool hasExplicitlyInheritedProperties() const { return noninherited_flags.explicitInheritance; }
   1537 
   1538     bool hasBoxDecorations() const { return hasBorder() || hasBorderRadius() || hasOutline() || hasAppearance() || boxShadow() || hasFilter(); }
   1539 
   1540     bool borderObscuresBackground() const;
   1541     void getBorderEdgeInfo(BorderEdge edges[], bool includeLogicalLeftEdge = true, bool includeLogicalRightEdge = true) const;
   1542 
   1543     // Initial values for all the properties
   1544     static EBorderCollapse initialBorderCollapse() { return BSEPARATE; }
   1545     static EBorderStyle initialBorderStyle() { return BNONE; }
   1546     static OutlineIsAuto initialOutlineStyleIsAuto() { return AUTO_OFF; }
   1547     static NinePieceImage initialNinePieceImage() { return NinePieceImage(); }
   1548     static LengthSize initialBorderRadius() { return LengthSize(Length(0, Fixed), Length(0, Fixed)); }
   1549     static ECaptionSide initialCaptionSide() { return CAPTOP; }
   1550     static EClear initialClear() { return CNONE; }
   1551     static LengthBox initialClip() { return LengthBox(); }
   1552     static TextDirection initialDirection() { return LTR; }
   1553     static WritingMode initialWritingMode() { return TopToBottomWritingMode; }
   1554     static TextCombine initialTextCombine() { return TextCombineNone; }
   1555     static TextOrientation initialTextOrientation() { return TextOrientationVerticalRight; }
   1556     static ObjectFit initialObjectFit() { return ObjectFitFill; }
   1557     static LengthPoint initialObjectPosition() { return LengthPoint(Length(50.0, Percent), Length(50.0, Percent)); }
   1558     static EDisplay initialDisplay() { return INLINE; }
   1559     static EEmptyCell initialEmptyCells() { return SHOW; }
   1560     static EFloat initialFloating() { return NoFloat; }
   1561     static EListStylePosition initialListStylePosition() { return OUTSIDE; }
   1562     static EListStyleType initialListStyleType() { return Disc; }
   1563     static EOverflow initialOverflowX() { return OVISIBLE; }
   1564     static EOverflow initialOverflowY() { return OVISIBLE; }
   1565     static EPageBreak initialPageBreak() { return PBAUTO; }
   1566     static EPosition initialPosition() { return StaticPosition; }
   1567     static ETableLayout initialTableLayout() { return TAUTO; }
   1568     static EUnicodeBidi initialUnicodeBidi() { return UBNormal; }
   1569     static ETextTransform initialTextTransform() { return TTNONE; }
   1570     static EVisibility initialVisibility() { return VISIBLE; }
   1571     static EWhiteSpace initialWhiteSpace() { return NORMAL; }
   1572     static short initialHorizontalBorderSpacing() { return 0; }
   1573     static short initialVerticalBorderSpacing() { return 0; }
   1574     static ECursor initialCursor() { return CURSOR_AUTO; }
   1575     static Color initialColor() { return Color::black; }
   1576     static StyleImage* initialListStyleImage() { return 0; }
   1577     static unsigned initialBorderWidth() { return 3; }
   1578     static unsigned short initialColumnRuleWidth() { return 3; }
   1579     static unsigned short initialOutlineWidth() { return 3; }
   1580     static float initialLetterWordSpacing() { return 0.0f; }
   1581     static Length initialSize() { return Length(); }
   1582     static Length initialMinSize() { return Length(Fixed); }
   1583     static Length initialMaxSize() { return Length(MaxSizeNone); }
   1584     static Length initialOffset() { return Length(); }
   1585     static Length initialMargin() { return Length(Fixed); }
   1586     static Length initialPadding() { return Length(Fixed); }
   1587     static Length initialTextIndent() { return Length(Fixed); }
   1588     static TextIndentLine initialTextIndentLine() { return TextIndentFirstLine; }
   1589     static TextIndentType initialTextIndentType() { return TextIndentNormal; }
   1590     static EVerticalAlign initialVerticalAlign() { return BASELINE; }
   1591     static short initialWidows() { return 2; }
   1592     static short initialOrphans() { return 2; }
   1593     static Length initialLineHeight() { return Length(-100.0, Percent); }
   1594     static ETextAlign initialTextAlign() { return TASTART; }
   1595     static TextAlignLast initialTextAlignLast() { return TextAlignLastAuto; }
   1596     static TextJustify initialTextJustify() { return TextJustifyAuto; }
   1597     static TextDecoration initialTextDecoration() { return TextDecorationNone; }
   1598     static TextUnderlinePosition initialTextUnderlinePosition() { return TextUnderlinePositionAuto; }
   1599     static TextDecorationStyle initialTextDecorationStyle() { return TextDecorationStyleSolid; }
   1600     static float initialZoom() { return 1.0f; }
   1601     static int initialOutlineOffset() { return 0; }
   1602     static float initialOpacity() { return 1.0f; }
   1603     static EBoxAlignment initialBoxAlign() { return BSTRETCH; }
   1604     static EBoxDecorationBreak initialBoxDecorationBreak() { return DSLICE; }
   1605     static EBoxDirection initialBoxDirection() { return BNORMAL; }
   1606     static EBoxLines initialBoxLines() { return SINGLE; }
   1607     static EBoxOrient initialBoxOrient() { return HORIZONTAL; }
   1608     static EBoxPack initialBoxPack() { return Start; }
   1609     static float initialBoxFlex() { return 0.0f; }
   1610     static unsigned initialBoxFlexGroup() { return 1; }
   1611     static unsigned initialBoxOrdinalGroup() { return 1; }
   1612     static EBoxSizing initialBoxSizing() { return CONTENT_BOX; }
   1613     static StyleReflection* initialBoxReflect() { return 0; }
   1614     static float initialFlexGrow() { return 0; }
   1615     static float initialFlexShrink() { return 1; }
   1616     static Length initialFlexBasis() { return Length(Auto); }
   1617     static int initialOrder() { return 0; }
   1618     static EAlignContent initialAlignContent() { return AlignContentStretch; }
   1619     static ItemPosition initialAlignItems() { return ItemPositionAuto; }
   1620     static OverflowAlignment initialAlignItemsOverflowAlignment() { return OverflowAlignmentDefault; }
   1621     static ItemPosition initialAlignSelf() { return ItemPositionAuto; }
   1622     static OverflowAlignment initialAlignSelfOverflowAlignment() { return OverflowAlignmentDefault; }
   1623     static EFlexDirection initialFlexDirection() { return FlowRow; }
   1624     static EFlexWrap initialFlexWrap() { return FlexNoWrap; }
   1625     static EJustifyContent initialJustifyContent() { return JustifyFlexStart; }
   1626     static ItemPosition initialJustifyItems() { return ItemPositionAuto; }
   1627     static OverflowAlignment initialJustifyItemsOverflowAlignment() { return OverflowAlignmentDefault; }
   1628     static ItemPositionType initialJustifyItemsPositionType() { return NonLegacyPosition; }
   1629     static ItemPosition initialJustifySelf() { return ItemPositionAuto; }
   1630     static OverflowAlignment initialJustifySelfOverflowAlignment() { return OverflowAlignmentDefault; }
   1631     static int initialMarqueeLoopCount() { return -1; }
   1632     static int initialMarqueeSpeed() { return 85; }
   1633     static Length initialMarqueeIncrement() { return Length(6, Fixed); }
   1634     static EMarqueeBehavior initialMarqueeBehavior() { return MSCROLL; }
   1635     static EMarqueeDirection initialMarqueeDirection() { return MAUTO; }
   1636     static EUserModify initialUserModify() { return READ_ONLY; }
   1637     static EUserDrag initialUserDrag() { return DRAG_AUTO; }
   1638     static EUserSelect initialUserSelect() { return SELECT_TEXT; }
   1639     static TextOverflow initialTextOverflow() { return TextOverflowClip; }
   1640     static EMarginCollapse initialMarginBeforeCollapse() { return MCOLLAPSE; }
   1641     static EMarginCollapse initialMarginAfterCollapse() { return MCOLLAPSE; }
   1642     static EWordBreak initialWordBreak() { return NormalWordBreak; }
   1643     static EOverflowWrap initialOverflowWrap() { return NormalOverflowWrap; }
   1644     static LineBreak initialLineBreak() { return LineBreakAuto; }
   1645     static const AtomicString& initialHighlight() { return nullAtom; }
   1646     static ESpeak initialSpeak() { return SpeakNormal; }
   1647     static const AtomicString& initialHyphenationString() { return nullAtom; }
   1648     static const AtomicString& initialLocale() { return nullAtom; }
   1649     static EBorderFit initialBorderFit() { return BorderFitBorder; }
   1650     static EResize initialResize() { return RESIZE_NONE; }
   1651     static ControlPart initialAppearance() { return NoControlPart; }
   1652     static bool initialHasAspectRatio() { return false; }
   1653     static float initialAspectRatioDenominator() { return 1; }
   1654     static float initialAspectRatioNumerator() { return 1; }
   1655     static Order initialRTLOrdering() { return LogicalOrder; }
   1656     static float initialTextStrokeWidth() { return 0; }
   1657     static unsigned short initialColumnCount() { return 1; }
   1658     static ColumnFill initialColumnFill() { return ColumnFillBalance; }
   1659     static ColumnSpan initialColumnSpan() { return ColumnSpanNone; }
   1660     static const TransformOperations& initialTransform() { DEFINE_STATIC_LOCAL(TransformOperations, ops, ()); return ops; }
   1661     static Length initialTransformOriginX() { return Length(50.0, Percent); }
   1662     static Length initialTransformOriginY() { return Length(50.0, Percent); }
   1663     static EPointerEvents initialPointerEvents() { return PE_AUTO; }
   1664     static float initialTransformOriginZ() { return 0; }
   1665     static ETransformStyle3D initialTransformStyle3D() { return TransformStyle3DFlat; }
   1666     static EBackfaceVisibility initialBackfaceVisibility() { return BackfaceVisibilityVisible; }
   1667     static float initialPerspective() { return 0; }
   1668     static Length initialPerspectiveOriginX() { return Length(50.0, Percent); }
   1669     static Length initialPerspectiveOriginY() { return Length(50.0, Percent); }
   1670     static Color initialBackgroundColor() { return Color::transparent; }
   1671     static TextEmphasisFill initialTextEmphasisFill() { return TextEmphasisFillFilled; }
   1672     static TextEmphasisMark initialTextEmphasisMark() { return TextEmphasisMarkNone; }
   1673     static const AtomicString& initialTextEmphasisCustomMark() { return nullAtom; }
   1674     static TextEmphasisPosition initialTextEmphasisPosition() { return TextEmphasisPositionOver; }
   1675     static RubyPosition initialRubyPosition() { return RubyPositionBefore; }
   1676     static LineBoxContain initialLineBoxContain() { return LineBoxContainBlock | LineBoxContainInline | LineBoxContainReplaced; }
   1677     static ImageOrientationEnum initialImageOrientation() { return OriginTopLeft; }
   1678     static EImageRendering initialImageRendering() { return ImageRenderingAuto; }
   1679     static ImageResolutionSource initialImageResolutionSource() { return ImageResolutionSpecified; }
   1680     static ImageResolutionSnap initialImageResolutionSnap() { return ImageResolutionNoSnap; }
   1681     static float initialImageResolution() { return 1; }
   1682     static StyleImage* initialBorderImageSource() { return 0; }
   1683     static StyleImage* initialMaskBoxImageSource() { return 0; }
   1684     static PrintColorAdjust initialPrintColorAdjust() { return PrintColorAdjustEconomy; }
   1685     static TouchAction initialTouchAction() { return TouchActionAuto; }
   1686     static TouchActionDelay initialTouchActionDelay() { return TouchActionDelayScript; }
   1687     static ShadowList* initialBoxShadow() { return 0; }
   1688     static ShadowList* initialTextShadow() { return 0; }
   1689     static ScrollBehavior initialScrollBehavior() { return ScrollBehaviorInstant; }
   1690 
   1691     // The initial value is 'none' for grid tracks.
   1692     static Vector<GridTrackSize> initialGridTemplateColumns() { return Vector<GridTrackSize>(); }
   1693     static Vector<GridTrackSize> initialGridTemplateRows() { return Vector<GridTrackSize>(); }
   1694 
   1695     static GridAutoFlow initialGridAutoFlow() { return AutoFlowRow; }
   1696 
   1697     static GridTrackSize initialGridAutoColumns() { return GridTrackSize(Length(Auto)); }
   1698     static GridTrackSize initialGridAutoRows() { return GridTrackSize(Length(Auto)); }
   1699 
   1700     static NamedGridLinesMap initialNamedGridColumnLines() { return NamedGridLinesMap(); }
   1701     static NamedGridLinesMap initialNamedGridRowLines() { return NamedGridLinesMap(); }
   1702 
   1703     static OrderedNamedGridLines initialOrderedNamedGridColumnLines() { return OrderedNamedGridLines(); }
   1704     static OrderedNamedGridLines initialOrderedNamedGridRowLines() { return OrderedNamedGridLines(); }
   1705 
   1706     static NamedGridAreaMap initialNamedGridArea() { return NamedGridAreaMap(); }
   1707     static size_t initialNamedGridAreaCount() { return 0; }
   1708 
   1709     // 'auto' is the default.
   1710     static GridPosition initialGridColumnStart() { return GridPosition(); }
   1711     static GridPosition initialGridColumnEnd() { return GridPosition(); }
   1712     static GridPosition initialGridRowStart() { return GridPosition(); }
   1713     static GridPosition initialGridRowEnd() { return GridPosition(); }
   1714 
   1715     static unsigned initialTabSize() { return 8; }
   1716 
   1717     static WrapFlow initialWrapFlow() { return WrapFlowAuto; }
   1718     static WrapThrough initialWrapThrough() { return WrapThroughWrap; }
   1719 
   1720     static QuotesData* initialQuotes() { return 0; }
   1721 
   1722     // Keep these at the end.
   1723     // FIXME: Why? Seems these should all be one big sorted list.
   1724     static LineClampValue initialLineClamp() { return LineClampValue(); }
   1725     static ETextSecurity initialTextSecurity() { return TSNONE; }
   1726     static Color initialTapHighlightColor();
   1727     static const FilterOperations& initialFilter() { DEFINE_STATIC_LOCAL(FilterOperations, ops, ()); return ops; }
   1728     static WebBlendMode initialBlendMode() { return WebBlendModeNormal; }
   1729     static EIsolation initialIsolation() { return IsolationAuto; }
   1730 private:
   1731     void setVisitedLinkColor(const Color&);
   1732     void setVisitedLinkBackgroundColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBackgroundColor, v); }
   1733     void setVisitedLinkBorderLeftColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBorderLeftColor, v); }
   1734     void setVisitedLinkBorderRightColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBorderRightColor, v); }
   1735     void setVisitedLinkBorderBottomColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBorderBottomColor, v); }
   1736     void setVisitedLinkBorderTopColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBorderTopColor, v); }
   1737     void setVisitedLinkOutlineColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkOutlineColor, v); }
   1738     void setVisitedLinkColumnRuleColor(const StyleColor& v) { SET_VAR(rareNonInheritedData.access()->m_multiCol, m_visitedLinkColumnRuleColor, v); }
   1739     void setVisitedLinkTextDecorationColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkTextDecorationColor, v); }
   1740     void setVisitedLinkTextEmphasisColor(const StyleColor& v) { SET_VAR_WITH_SETTER(rareInheritedData, visitedLinkTextEmphasisColor, setVisitedLinkTextEmphasisColor, v); }
   1741     void setVisitedLinkTextFillColor(const StyleColor& v) { SET_VAR_WITH_SETTER(rareInheritedData, visitedLinkTextFillColor, setVisitedLinkTextFillColor, v); }
   1742     void setVisitedLinkTextStrokeColor(const StyleColor& v) { SET_VAR_WITH_SETTER(rareInheritedData, visitedLinkTextStrokeColor, setVisitedLinkTextStrokeColor, v); }
   1743 
   1744     void inheritUnicodeBidiFrom(const RenderStyle* parent) { noninherited_flags.unicodeBidi = parent->noninherited_flags.unicodeBidi; }
   1745     void getShadowExtent(const ShadowList*, LayoutUnit& top, LayoutUnit& right, LayoutUnit& bottom, LayoutUnit& left) const;
   1746     LayoutBoxExtent getShadowInsetExtent(const ShadowList*) const;
   1747     void getShadowHorizontalExtent(const ShadowList*, LayoutUnit& left, LayoutUnit& right) const;
   1748     void getShadowVerticalExtent(const ShadowList*, LayoutUnit& top, LayoutUnit& bottom) const;
   1749     void getShadowInlineDirectionExtent(const ShadowList* shadow, LayoutUnit& logicalLeft, LayoutUnit& logicalRight) const
   1750     {
   1751         return isHorizontalWritingMode() ? getShadowHorizontalExtent(shadow, logicalLeft, logicalRight) : getShadowVerticalExtent(shadow, logicalLeft, logicalRight);
   1752     }
   1753     void getShadowBlockDirectionExtent(const ShadowList* shadow, LayoutUnit& logicalTop, LayoutUnit& logicalBottom) const
   1754     {
   1755         return isHorizontalWritingMode() ? getShadowVerticalExtent(shadow, logicalTop, logicalBottom) : getShadowHorizontalExtent(shadow, logicalTop, logicalBottom);
   1756     }
   1757 
   1758     bool isDisplayFlexibleBox(EDisplay display) const
   1759     {
   1760         return display == FLEX || display == INLINE_FLEX;
   1761     }
   1762 
   1763     bool isDisplayGridBox(EDisplay display) const
   1764     {
   1765         return display == GRID || display == INLINE_GRID;
   1766     }
   1767 
   1768     bool isDisplayReplacedType(EDisplay display) const
   1769     {
   1770         return display == INLINE_BLOCK || display == INLINE_BOX || display == INLINE_FLEX
   1771             || display == INLINE_TABLE || display == INLINE_GRID;
   1772     }
   1773 
   1774     bool isDisplayInlineType(EDisplay display) const
   1775     {
   1776         return display == INLINE || isDisplayReplacedType(display);
   1777     }
   1778 
   1779     // Color accessors are all private to make sure callers use visitedDependentColor instead to access them.
   1780     StyleColor borderLeftColor() const { return surround->border.left().color(); }
   1781     StyleColor borderRightColor() const { return surround->border.right().color(); }
   1782     StyleColor borderTopColor() const { return surround->border.top().color(); }
   1783     StyleColor borderBottomColor() const { return surround->border.bottom().color(); }
   1784     StyleColor backgroundColor() const { return m_background->color(); }
   1785     Color color() const;
   1786     StyleColor columnRuleColor() const { return rareNonInheritedData->m_multiCol->m_rule.color(); }
   1787     StyleColor outlineColor() const { return m_background->outline().color(); }
   1788     StyleColor textEmphasisColor() const { return rareInheritedData->textEmphasisColor(); }
   1789     StyleColor textFillColor() const { return rareInheritedData->textFillColor(); }
   1790     StyleColor textStrokeColor() const { return rareInheritedData->textStrokeColor(); }
   1791     Color visitedLinkColor() const;
   1792     StyleColor visitedLinkBackgroundColor() const { return rareNonInheritedData->m_visitedLinkBackgroundColor; }
   1793     StyleColor visitedLinkBorderLeftColor() const { return rareNonInheritedData->m_visitedLinkBorderLeftColor; }
   1794     StyleColor visitedLinkBorderRightColor() const { return rareNonInheritedData->m_visitedLinkBorderRightColor; }
   1795     StyleColor visitedLinkBorderBottomColor() const { return rareNonInheritedData->m_visitedLinkBorderBottomColor; }
   1796     StyleColor visitedLinkBorderTopColor() const { return rareNonInheritedData->m_visitedLinkBorderTopColor; }
   1797     StyleColor visitedLinkOutlineColor() const { return rareNonInheritedData->m_visitedLinkOutlineColor; }
   1798     StyleColor visitedLinkColumnRuleColor() const { return rareNonInheritedData->m_multiCol->m_visitedLinkColumnRuleColor; }
   1799     StyleColor textDecorationColor() const { return rareNonInheritedData->m_textDecorationColor; }
   1800     StyleColor visitedLinkTextDecorationColor() const { return rareNonInheritedData->m_visitedLinkTextDecorationColor; }
   1801     StyleColor visitedLinkTextEmphasisColor() const { return rareInheritedData->visitedLinkTextEmphasisColor(); }
   1802     StyleColor visitedLinkTextFillColor() const { return rareInheritedData->visitedLinkTextFillColor(); }
   1803     StyleColor visitedLinkTextStrokeColor() const { return rareInheritedData->visitedLinkTextStrokeColor(); }
   1804 
   1805     Color colorIncludingFallback(int colorProperty, bool visitedLink) const;
   1806 
   1807     Color stopColor() const { return svgStyle().stopColor(); }
   1808     Color floodColor() const { return svgStyle().floodColor(); }
   1809     Color lightingColor() const { return svgStyle().lightingColor(); }
   1810 
   1811     void appendContent(PassOwnPtr<ContentData>);
   1812     void addAppliedTextDecoration(const AppliedTextDecoration&);
   1813 
   1814     bool diffNeedsFullLayoutAndPaintInvalidation(const RenderStyle& other) const;
   1815     bool diffNeedsFullLayout(const RenderStyle& other) const;
   1816     bool diffNeedsPaintInvalidationLayer(const RenderStyle& other) const;
   1817     bool diffNeedsPaintInvalidationObject(const RenderStyle& other) const;
   1818     void updatePropertySpecificDifferences(const RenderStyle& other, StyleDifference&) const;
   1819 };
   1820 
   1821 // FIXME: Reduce/remove the dependency on zoom adjusted int values.
   1822 // The float or LayoutUnit versions of layout values should be used.
   1823 inline int adjustForAbsoluteZoom(int value, float zoomFactor)
   1824 {
   1825     if (zoomFactor == 1)
   1826         return value;
   1827     // Needed because computeLengthInt truncates (rather than rounds) when scaling up.
   1828     float fvalue = value;
   1829     if (zoomFactor > 1) {
   1830         if (value < 0)
   1831             fvalue -= 0.5f;
   1832         else
   1833             fvalue += 0.5f;
   1834     }
   1835 
   1836     return roundForImpreciseConversion<int>(fvalue / zoomFactor);
   1837 }
   1838 
   1839 inline int adjustForAbsoluteZoom(int value, const RenderStyle* style)
   1840 {
   1841     return adjustForAbsoluteZoom(value, style->effectiveZoom());
   1842 }
   1843 
   1844 inline float adjustFloatForAbsoluteZoom(float value, const RenderStyle& style)
   1845 {
   1846     return value / style.effectiveZoom();
   1847 }
   1848 
   1849 inline double adjustDoubleForAbsoluteZoom(double value, const RenderStyle& style)
   1850 {
   1851     return value / style.effectiveZoom();
   1852 }
   1853 
   1854 inline LayoutUnit adjustLayoutUnitForAbsoluteZoom(LayoutUnit value, const RenderStyle& style)
   1855 {
   1856     return value / style.effectiveZoom();
   1857 }
   1858 
   1859 // Since we don't currently persist fractional scroll offsets (crbug.com/414283),
   1860 // we should round our return value to reflect the actual precision we have under
   1861 // the range of typical zoom values. This avoids surprising issues with scroll
   1862 // values not quite round-tripping exactly.
   1863 inline double adjustScrollForAbsoluteZoom(int scrollOffset, float zoomFactor)
   1864 {
   1865     double result = scrollOffset / zoomFactor;
   1866     const double kScale = 10000; // 4 decimal places of accuracy
   1867     return round(result * kScale) / kScale;
   1868 }
   1869 
   1870 inline double adjustScrollForAbsoluteZoom(int scrollOffset, const RenderStyle& style)
   1871 {
   1872     return adjustScrollForAbsoluteZoom(scrollOffset, style.effectiveZoom());
   1873 }
   1874 
   1875 inline bool RenderStyle::setZoom(float f)
   1876 {
   1877     if (compareEqual(visual->m_zoom, f))
   1878         return false;
   1879     visual.access()->m_zoom = f;
   1880     setEffectiveZoom(effectiveZoom() * zoom());
   1881     return true;
   1882 }
   1883 
   1884 inline bool RenderStyle::setEffectiveZoom(float f)
   1885 {
   1886     if (compareEqual(rareInheritedData->m_effectiveZoom, f))
   1887         return false;
   1888     rareInheritedData.access()->m_effectiveZoom = f;
   1889     return true;
   1890 }
   1891 
   1892 inline bool RenderStyle::isSharable() const
   1893 {
   1894     if (unique())
   1895         return false;
   1896     if (hasUniquePseudoStyle())
   1897         return false;
   1898     return true;
   1899 }
   1900 
   1901 inline bool RenderStyle::setTextOrientation(TextOrientation textOrientation)
   1902 {
   1903     if (compareEqual(rareInheritedData->m_textOrientation, textOrientation))
   1904         return false;
   1905 
   1906     rareInheritedData.access()->m_textOrientation = textOrientation;
   1907     return true;
   1908 }
   1909 
   1910 inline bool RenderStyle::hasAnyPublicPseudoStyles() const
   1911 {
   1912     return PUBLIC_PSEUDOID_MASK & noninherited_flags.pseudoBits;
   1913 }
   1914 
   1915 inline bool RenderStyle::hasPseudoStyle(PseudoId pseudo) const
   1916 {
   1917     ASSERT(pseudo > NOPSEUDO);
   1918     ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID);
   1919     return (1 << (pseudo - 1)) & noninherited_flags.pseudoBits;
   1920 }
   1921 
   1922 inline void RenderStyle::setHasPseudoStyle(PseudoId pseudo)
   1923 {
   1924     ASSERT(pseudo > NOPSEUDO);
   1925     ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID);
   1926     noninherited_flags.pseudoBits |= 1 << (pseudo - 1);
   1927 }
   1928 
   1929 inline bool RenderStyle::hasPseudoElementStyle() const
   1930 {
   1931     return noninherited_flags.pseudoBits & PSEUDO_ELEMENT_MASK;
   1932 }
   1933 
   1934 float calcBorderRadiiConstraintScaleFor(const FloatRect&, const FloatRoundedRect::Radii&);
   1935 
   1936 } // namespace blink
   1937 
   1938 #endif // RenderStyle_h
   1939