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      1 
      2 /*
      3  * Copyright (C) 2012 Google, Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "core/frame/UseCounter.h"
     29 
     30 #include "core/css/CSSStyleSheet.h"
     31 #include "core/css/StyleSheetContents.h"
     32 #include "core/dom/Document.h"
     33 #include "core/dom/ExecutionContext.h"
     34 #include "core/frame/LocalDOMWindow.h"
     35 #include "core/frame/FrameConsole.h"
     36 #include "core/frame/FrameHost.h"
     37 #include "core/frame/LocalFrame.h"
     38 #include "core/inspector/ConsoleMessage.h"
     39 #include "core/workers/WorkerGlobalScope.h"
     40 #include "public/platform/Platform.h"
     41 
     42 namespace blink {
     43 
     44 static int totalPagesMeasuredCSSSampleId() { return 1; }
     45 
     46 int UseCounter::m_muteCount = 0;
     47 
     48 // FIXME : This mapping should be autogenerated. This function should
     49 //         be moved to a separate file and a script run at build time
     50 //         to detect new values in CSSPropertyID and add them to the
     51 //         end of this function. This file would be checked in.
     52 //         https://code.google.com/p/chromium/issues/detail?id=234940
     53 int UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(int id)
     54 {
     55     CSSPropertyID cssPropertyID = convertToCSSPropertyID(id);
     56 
     57     switch (cssPropertyID) {
     58     // Begin at 2, because 1 is reserved for totalPagesMeasuredCSSSampleId.
     59     case CSSPropertyColor: return 2;
     60     case CSSPropertyDirection: return 3;
     61     case CSSPropertyDisplay: return 4;
     62     case CSSPropertyFont: return 5;
     63     case CSSPropertyFontFamily: return 6;
     64     case CSSPropertyFontSize: return 7;
     65     case CSSPropertyFontStyle: return 8;
     66     case CSSPropertyFontVariant: return 9;
     67     case CSSPropertyFontWeight: return 10;
     68     case CSSPropertyTextRendering: return 11;
     69     case CSSPropertyWebkitFontFeatureSettings: return 12;
     70     case CSSPropertyFontKerning: return 13;
     71     case CSSPropertyWebkitFontSmoothing: return 14;
     72     case CSSPropertyFontVariantLigatures: return 15;
     73     case CSSPropertyWebkitLocale: return 16;
     74     case CSSPropertyWebkitTextOrientation: return 17;
     75     case CSSPropertyWebkitWritingMode: return 18;
     76     case CSSPropertyZoom: return 19;
     77     case CSSPropertyLineHeight: return 20;
     78     case CSSPropertyBackground: return 21;
     79     case CSSPropertyBackgroundAttachment: return 22;
     80     case CSSPropertyBackgroundClip: return 23;
     81     case CSSPropertyBackgroundColor: return 24;
     82     case CSSPropertyBackgroundImage: return 25;
     83     case CSSPropertyBackgroundOrigin: return 26;
     84     case CSSPropertyBackgroundPosition: return 27;
     85     case CSSPropertyBackgroundPositionX: return 28;
     86     case CSSPropertyBackgroundPositionY: return 29;
     87     case CSSPropertyBackgroundRepeat: return 30;
     88     case CSSPropertyBackgroundRepeatX: return 31;
     89     case CSSPropertyBackgroundRepeatY: return 32;
     90     case CSSPropertyBackgroundSize: return 33;
     91     case CSSPropertyBorder: return 34;
     92     case CSSPropertyBorderBottom: return 35;
     93     case CSSPropertyBorderBottomColor: return 36;
     94     case CSSPropertyBorderBottomLeftRadius: return 37;
     95     case CSSPropertyBorderBottomRightRadius: return 38;
     96     case CSSPropertyBorderBottomStyle: return 39;
     97     case CSSPropertyBorderBottomWidth: return 40;
     98     case CSSPropertyBorderCollapse: return 41;
     99     case CSSPropertyBorderColor: return 42;
    100     case CSSPropertyBorderImage: return 43;
    101     case CSSPropertyBorderImageOutset: return 44;
    102     case CSSPropertyBorderImageRepeat: return 45;
    103     case CSSPropertyBorderImageSlice: return 46;
    104     case CSSPropertyBorderImageSource: return 47;
    105     case CSSPropertyBorderImageWidth: return 48;
    106     case CSSPropertyBorderLeft: return 49;
    107     case CSSPropertyBorderLeftColor: return 50;
    108     case CSSPropertyBorderLeftStyle: return 51;
    109     case CSSPropertyBorderLeftWidth: return 52;
    110     case CSSPropertyBorderRadius: return 53;
    111     case CSSPropertyBorderRight: return 54;
    112     case CSSPropertyBorderRightColor: return 55;
    113     case CSSPropertyBorderRightStyle: return 56;
    114     case CSSPropertyBorderRightWidth: return 57;
    115     case CSSPropertyBorderSpacing: return 58;
    116     case CSSPropertyBorderStyle: return 59;
    117     case CSSPropertyBorderTop: return 60;
    118     case CSSPropertyBorderTopColor: return 61;
    119     case CSSPropertyBorderTopLeftRadius: return 62;
    120     case CSSPropertyBorderTopRightRadius: return 63;
    121     case CSSPropertyBorderTopStyle: return 64;
    122     case CSSPropertyBorderTopWidth: return 65;
    123     case CSSPropertyBorderWidth: return 66;
    124     case CSSPropertyBottom: return 67;
    125     case CSSPropertyBoxShadow: return 68;
    126     case CSSPropertyBoxSizing: return 69;
    127     case CSSPropertyCaptionSide: return 70;
    128     case CSSPropertyClear: return 71;
    129     case CSSPropertyClip: return 72;
    130     case CSSPropertyWebkitClipPath: return 73;
    131     case CSSPropertyContent: return 74;
    132     case CSSPropertyCounterIncrement: return 75;
    133     case CSSPropertyCounterReset: return 76;
    134     case CSSPropertyCursor: return 77;
    135     case CSSPropertyEmptyCells: return 78;
    136     case CSSPropertyFloat: return 79;
    137     case CSSPropertyFontStretch: return 80;
    138     case CSSPropertyHeight: return 81;
    139     case CSSPropertyImageRendering: return 82;
    140     case CSSPropertyLeft: return 83;
    141     case CSSPropertyLetterSpacing: return 84;
    142     case CSSPropertyListStyle: return 85;
    143     case CSSPropertyListStyleImage: return 86;
    144     case CSSPropertyListStylePosition: return 87;
    145     case CSSPropertyListStyleType: return 88;
    146     case CSSPropertyMargin: return 89;
    147     case CSSPropertyMarginBottom: return 90;
    148     case CSSPropertyMarginLeft: return 91;
    149     case CSSPropertyMarginRight: return 92;
    150     case CSSPropertyMarginTop: return 93;
    151     case CSSPropertyMaxHeight: return 94;
    152     case CSSPropertyMaxWidth: return 95;
    153     case CSSPropertyMinHeight: return 96;
    154     case CSSPropertyMinWidth: return 97;
    155     case CSSPropertyOpacity: return 98;
    156     case CSSPropertyOrphans: return 99;
    157     case CSSPropertyOutline: return 100;
    158     case CSSPropertyOutlineColor: return 101;
    159     case CSSPropertyOutlineOffset: return 102;
    160     case CSSPropertyOutlineStyle: return 103;
    161     case CSSPropertyOutlineWidth: return 104;
    162     case CSSPropertyOverflow: return 105;
    163     case CSSPropertyOverflowWrap: return 106;
    164     case CSSPropertyOverflowX: return 107;
    165     case CSSPropertyOverflowY: return 108;
    166     case CSSPropertyPadding: return 109;
    167     case CSSPropertyPaddingBottom: return 110;
    168     case CSSPropertyPaddingLeft: return 111;
    169     case CSSPropertyPaddingRight: return 112;
    170     case CSSPropertyPaddingTop: return 113;
    171     case CSSPropertyPage: return 114;
    172     case CSSPropertyPageBreakAfter: return 115;
    173     case CSSPropertyPageBreakBefore: return 116;
    174     case CSSPropertyPageBreakInside: return 117;
    175     case CSSPropertyPointerEvents: return 118;
    176     case CSSPropertyPosition: return 119;
    177     case CSSPropertyQuotes: return 120;
    178     case CSSPropertyResize: return 121;
    179     case CSSPropertyRight: return 122;
    180     case CSSPropertySize: return 123;
    181     case CSSPropertySrc: return 124;
    182     case CSSPropertySpeak: return 125;
    183     case CSSPropertyTableLayout: return 126;
    184     case CSSPropertyTabSize: return 127;
    185     case CSSPropertyTextAlign: return 128;
    186     case CSSPropertyTextDecoration: return 129;
    187     case CSSPropertyTextIndent: return 130;
    188     /* Removed CSSPropertyTextLineThrough* - 131-135 */
    189     case CSSPropertyTextOverflow: return 136;
    190     /* Removed CSSPropertyTextOverline* - 137-141 */
    191     case CSSPropertyTextShadow: return 142;
    192     case CSSPropertyTextTransform: return 143;
    193     /* Removed CSSPropertyTextUnderline* - 144-148 */
    194     case CSSPropertyTop: return 149;
    195     case CSSPropertyTransition: return 150;
    196     case CSSPropertyTransitionDelay: return 151;
    197     case CSSPropertyTransitionDuration: return 152;
    198     case CSSPropertyTransitionProperty: return 153;
    199     case CSSPropertyTransitionTimingFunction: return 154;
    200     case CSSPropertyUnicodeBidi: return 155;
    201     case CSSPropertyUnicodeRange: return 156;
    202     case CSSPropertyVerticalAlign: return 157;
    203     case CSSPropertyVisibility: return 158;
    204     case CSSPropertyWhiteSpace: return 159;
    205     case CSSPropertyWidows: return 160;
    206     case CSSPropertyWidth: return 161;
    207     case CSSPropertyWordBreak: return 162;
    208     case CSSPropertyWordSpacing: return 163;
    209     case CSSPropertyWordWrap: return 164;
    210     case CSSPropertyZIndex: return 165;
    211     case CSSPropertyWebkitAnimation: return 166;
    212     case CSSPropertyWebkitAnimationDelay: return 167;
    213     case CSSPropertyWebkitAnimationDirection: return 168;
    214     case CSSPropertyWebkitAnimationDuration: return 169;
    215     case CSSPropertyWebkitAnimationFillMode: return 170;
    216     case CSSPropertyWebkitAnimationIterationCount: return 171;
    217     case CSSPropertyWebkitAnimationName: return 172;
    218     case CSSPropertyWebkitAnimationPlayState: return 173;
    219     case CSSPropertyWebkitAnimationTimingFunction: return 174;
    220     case CSSPropertyWebkitAppearance: return 175;
    221     case CSSPropertyWebkitAspectRatio: return 176;
    222     case CSSPropertyWebkitBackfaceVisibility: return 177;
    223     case CSSPropertyWebkitBackgroundClip: return 178;
    224     case CSSPropertyWebkitBackgroundComposite: return 179;
    225     case CSSPropertyWebkitBackgroundOrigin: return 180;
    226     case CSSPropertyWebkitBackgroundSize: return 181;
    227     case CSSPropertyWebkitBorderAfter: return 182;
    228     case CSSPropertyWebkitBorderAfterColor: return 183;
    229     case CSSPropertyWebkitBorderAfterStyle: return 184;
    230     case CSSPropertyWebkitBorderAfterWidth: return 185;
    231     case CSSPropertyWebkitBorderBefore: return 186;
    232     case CSSPropertyWebkitBorderBeforeColor: return 187;
    233     case CSSPropertyWebkitBorderBeforeStyle: return 188;
    234     case CSSPropertyWebkitBorderBeforeWidth: return 189;
    235     case CSSPropertyWebkitBorderEnd: return 190;
    236     case CSSPropertyWebkitBorderEndColor: return 191;
    237     case CSSPropertyWebkitBorderEndStyle: return 192;
    238     case CSSPropertyWebkitBorderEndWidth: return 193;
    239     case CSSPropertyWebkitBorderFit: return 194;
    240     case CSSPropertyWebkitBorderHorizontalSpacing: return 195;
    241     case CSSPropertyWebkitBorderImage: return 196;
    242     case CSSPropertyWebkitBorderRadius: return 197;
    243     case CSSPropertyWebkitBorderStart: return 198;
    244     case CSSPropertyWebkitBorderStartColor: return 199;
    245     case CSSPropertyWebkitBorderStartStyle: return 200;
    246     case CSSPropertyWebkitBorderStartWidth: return 201;
    247     case CSSPropertyWebkitBorderVerticalSpacing: return 202;
    248     case CSSPropertyWebkitBoxAlign: return 203;
    249     case CSSPropertyWebkitBoxDirection: return 204;
    250     case CSSPropertyWebkitBoxFlex: return 205;
    251     case CSSPropertyWebkitBoxFlexGroup: return 206;
    252     case CSSPropertyWebkitBoxLines: return 207;
    253     case CSSPropertyWebkitBoxOrdinalGroup: return 208;
    254     case CSSPropertyWebkitBoxOrient: return 209;
    255     case CSSPropertyWebkitBoxPack: return 210;
    256     case CSSPropertyWebkitBoxReflect: return 211;
    257     case CSSPropertyWebkitBoxShadow: return 212;
    258     // CSSPropertyWebkitColumnAxis was 214
    259     case CSSPropertyWebkitColumnBreakAfter: return 215;
    260     case CSSPropertyWebkitColumnBreakBefore: return 216;
    261     case CSSPropertyWebkitColumnBreakInside: return 217;
    262     case CSSPropertyWebkitColumnCount: return 218;
    263     case CSSPropertyWebkitColumnGap: return 219;
    264     // CSSPropertyWebkitColumnProgression was 220
    265     case CSSPropertyWebkitColumnRule: return 221;
    266     case CSSPropertyWebkitColumnRuleColor: return 222;
    267     case CSSPropertyWebkitColumnRuleStyle: return 223;
    268     case CSSPropertyWebkitColumnRuleWidth: return 224;
    269     case CSSPropertyWebkitColumnSpan: return 225;
    270     case CSSPropertyWebkitColumnWidth: return 226;
    271     case CSSPropertyWebkitColumns: return 227;
    272 #if defined(ENABLE_CSS_BOX_DECORATION_BREAK) && ENABLE_CSS_BOX_DECORATION_BREAK
    273     case CSSPropertyWebkitBoxDecorationBreak: return 228;
    274 #endif
    275 #if defined(ENABLE_CSS_FILTERS) && ENABLE_CSS_FILTERS
    276     case CSSPropertyWebkitFilter: return 229;
    277 #endif
    278     case CSSPropertyAlignContent: return 230;
    279     case CSSPropertyAlignItems: return 231;
    280     case CSSPropertyAlignSelf: return 232;
    281     case CSSPropertyFlex: return 233;
    282     case CSSPropertyFlexBasis: return 234;
    283     case CSSPropertyFlexDirection: return 235;
    284     case CSSPropertyFlexFlow: return 236;
    285     case CSSPropertyFlexGrow: return 237;
    286     case CSSPropertyFlexShrink: return 238;
    287     case CSSPropertyFlexWrap: return 239;
    288     case CSSPropertyJustifyContent: return 240;
    289     case CSSPropertyWebkitFontSizeDelta: return 241;
    290     case CSSPropertyGridTemplateColumns: return 242;
    291     case CSSPropertyGridTemplateRows: return 243;
    292     case CSSPropertyGridColumnStart: return 244;
    293     case CSSPropertyGridColumnEnd: return 245;
    294     case CSSPropertyGridRowStart: return 246;
    295     case CSSPropertyGridRowEnd: return 247;
    296     case CSSPropertyGridColumn: return 248;
    297     case CSSPropertyGridRow: return 249;
    298     case CSSPropertyGridAutoFlow: return 250;
    299     case CSSPropertyWebkitHighlight: return 251;
    300     case CSSPropertyWebkitHyphenateCharacter: return 252;
    301     case CSSPropertyWebkitLineBoxContain: return 257;
    302     // case CSSPropertyWebkitLineAlign: return 258;
    303     case CSSPropertyWebkitLineBreak: return 259;
    304     case CSSPropertyWebkitLineClamp: return 260;
    305     // case CSSPropertyWebkitLineGrid: return 261;
    306     // case CSSPropertyWebkitLineSnap: return 262;
    307     case CSSPropertyWebkitLogicalWidth: return 263;
    308     case CSSPropertyWebkitLogicalHeight: return 264;
    309     case CSSPropertyWebkitMarginAfterCollapse: return 265;
    310     case CSSPropertyWebkitMarginBeforeCollapse: return 266;
    311     case CSSPropertyWebkitMarginBottomCollapse: return 267;
    312     case CSSPropertyWebkitMarginTopCollapse: return 268;
    313     case CSSPropertyWebkitMarginCollapse: return 269;
    314     case CSSPropertyWebkitMarginAfter: return 270;
    315     case CSSPropertyWebkitMarginBefore: return 271;
    316     case CSSPropertyWebkitMarginEnd: return 272;
    317     case CSSPropertyWebkitMarginStart: return 273;
    318     // CSSPropertyWebkitMarquee was 274.
    319     // CSSPropertyInternalMarquee* were 275-279.
    320     case CSSPropertyWebkitMask: return 280;
    321     case CSSPropertyWebkitMaskBoxImage: return 281;
    322     case CSSPropertyWebkitMaskBoxImageOutset: return 282;
    323     case CSSPropertyWebkitMaskBoxImageRepeat: return 283;
    324     case CSSPropertyWebkitMaskBoxImageSlice: return 284;
    325     case CSSPropertyWebkitMaskBoxImageSource: return 285;
    326     case CSSPropertyWebkitMaskBoxImageWidth: return 286;
    327     case CSSPropertyWebkitMaskClip: return 287;
    328     case CSSPropertyWebkitMaskComposite: return 288;
    329     case CSSPropertyWebkitMaskImage: return 289;
    330     case CSSPropertyWebkitMaskOrigin: return 290;
    331     case CSSPropertyWebkitMaskPosition: return 291;
    332     case CSSPropertyWebkitMaskPositionX: return 292;
    333     case CSSPropertyWebkitMaskPositionY: return 293;
    334     case CSSPropertyWebkitMaskRepeat: return 294;
    335     case CSSPropertyWebkitMaskRepeatX: return 295;
    336     case CSSPropertyWebkitMaskRepeatY: return 296;
    337     case CSSPropertyWebkitMaskSize: return 297;
    338     case CSSPropertyWebkitMaxLogicalWidth: return 298;
    339     case CSSPropertyWebkitMaxLogicalHeight: return 299;
    340     case CSSPropertyWebkitMinLogicalWidth: return 300;
    341     case CSSPropertyWebkitMinLogicalHeight: return 301;
    342     // WebkitNbspMode has been deleted, was return 302;
    343     case CSSPropertyOrder: return 303;
    344     case CSSPropertyWebkitPaddingAfter: return 304;
    345     case CSSPropertyWebkitPaddingBefore: return 305;
    346     case CSSPropertyWebkitPaddingEnd: return 306;
    347     case CSSPropertyWebkitPaddingStart: return 307;
    348     case CSSPropertyWebkitPerspective: return 308;
    349     case CSSPropertyWebkitPerspectiveOrigin: return 309;
    350     case CSSPropertyWebkitPerspectiveOriginX: return 310;
    351     case CSSPropertyWebkitPerspectiveOriginY: return 311;
    352     case CSSPropertyWebkitPrintColorAdjust: return 312;
    353     case CSSPropertyWebkitRtlOrdering: return 313;
    354     case CSSPropertyWebkitRubyPosition: return 314;
    355     case CSSPropertyWebkitTextCombine: return 315;
    356     case CSSPropertyWebkitTextDecorationsInEffect: return 316;
    357     case CSSPropertyWebkitTextEmphasis: return 317;
    358     case CSSPropertyWebkitTextEmphasisColor: return 318;
    359     case CSSPropertyWebkitTextEmphasisPosition: return 319;
    360     case CSSPropertyWebkitTextEmphasisStyle: return 320;
    361     case CSSPropertyWebkitTextFillColor: return 321;
    362     case CSSPropertyWebkitTextSecurity: return 322;
    363     case CSSPropertyWebkitTextStroke: return 323;
    364     case CSSPropertyWebkitTextStrokeColor: return 324;
    365     case CSSPropertyWebkitTextStrokeWidth: return 325;
    366     case CSSPropertyWebkitTransform: return 326;
    367     case CSSPropertyWebkitTransformOrigin: return 327;
    368     case CSSPropertyWebkitTransformOriginX: return 328;
    369     case CSSPropertyWebkitTransformOriginY: return 329;
    370     case CSSPropertyWebkitTransformOriginZ: return 330;
    371     case CSSPropertyWebkitTransformStyle: return 331;
    372     case CSSPropertyWebkitTransition: return 332;
    373     case CSSPropertyWebkitTransitionDelay: return 333;
    374     case CSSPropertyWebkitTransitionDuration: return 334;
    375     case CSSPropertyWebkitTransitionProperty: return 335;
    376     case CSSPropertyWebkitTransitionTimingFunction: return 336;
    377     case CSSPropertyWebkitUserDrag: return 337;
    378     case CSSPropertyWebkitUserModify: return 338;
    379     case CSSPropertyWebkitUserSelect: return 339;
    380     // case CSSPropertyWebkitFlowInto: return 340;
    381     // case CSSPropertyWebkitFlowFrom: return 341;
    382     // case CSSPropertyWebkitRegionFragment: return 342;
    383     // case CSSPropertyWebkitRegionBreakAfter: return 343;
    384     // case CSSPropertyWebkitRegionBreakBefore: return 344;
    385     // case CSSPropertyWebkitRegionBreakInside: return 345;
    386     // case CSSPropertyShapeInside: return 346;
    387     case CSSPropertyShapeOutside: return 347;
    388     case CSSPropertyShapeMargin: return 348;
    389     // case CSSPropertyShapePadding: return 349;
    390     // case CSSPropertyWebkitWrapFlow: return 350;
    391     // case CSSPropertyWebkitWrapThrough: return 351;
    392     // CSSPropertyWebkitWrap was 352.
    393 #if defined(ENABLE_TOUCH_EVENTS) && ENABLE_TOUCH_EVENTS
    394     case CSSPropertyWebkitTapHighlightColor: return 353;
    395 #endif
    396 #if defined(ENABLE_DRAGGABLE_REGION) && ENABLE_DRAGGABLE_REGION
    397     case CSSPropertyWebkitAppRegion: return 354;
    398 #endif
    399     case CSSPropertyClipPath: return 355;
    400     case CSSPropertyClipRule: return 356;
    401     case CSSPropertyMask: return 357;
    402     case CSSPropertyEnableBackground: return 358;
    403     case CSSPropertyFilter: return 359;
    404     case CSSPropertyFloodColor: return 360;
    405     case CSSPropertyFloodOpacity: return 361;
    406     case CSSPropertyLightingColor: return 362;
    407     case CSSPropertyStopColor: return 363;
    408     case CSSPropertyStopOpacity: return 364;
    409     case CSSPropertyColorInterpolation: return 365;
    410     case CSSPropertyColorInterpolationFilters: return 366;
    411     // case CSSPropertyColorProfile: return 367;
    412     case CSSPropertyColorRendering: return 368;
    413     case CSSPropertyFill: return 369;
    414     case CSSPropertyFillOpacity: return 370;
    415     case CSSPropertyFillRule: return 371;
    416     case CSSPropertyMarker: return 372;
    417     case CSSPropertyMarkerEnd: return 373;
    418     case CSSPropertyMarkerMid: return 374;
    419     case CSSPropertyMarkerStart: return 375;
    420     case CSSPropertyMaskType: return 376;
    421     case CSSPropertyShapeRendering: return 377;
    422     case CSSPropertyStroke: return 378;
    423     case CSSPropertyStrokeDasharray: return 379;
    424     case CSSPropertyStrokeDashoffset: return 380;
    425     case CSSPropertyStrokeLinecap: return 381;
    426     case CSSPropertyStrokeLinejoin: return 382;
    427     case CSSPropertyStrokeMiterlimit: return 383;
    428     case CSSPropertyStrokeOpacity: return 384;
    429     case CSSPropertyStrokeWidth: return 385;
    430     case CSSPropertyAlignmentBaseline: return 386;
    431     case CSSPropertyBaselineShift: return 387;
    432     case CSSPropertyDominantBaseline: return 388;
    433     case CSSPropertyGlyphOrientationHorizontal: return 389;
    434     case CSSPropertyGlyphOrientationVertical: return 390;
    435     // CSSPropertyKerning has been removed, was return 391;
    436     case CSSPropertyTextAnchor: return 392;
    437     case CSSPropertyVectorEffect: return 393;
    438     case CSSPropertyWritingMode: return 394;
    439     // CSSPropertyWebkitSvgShadow has been removed, was return 395;
    440     // CSSPropertyWebkitCursorVisibility has been removed, was return 396;
    441     // CSSPropertyImageOrientation has been removed, was return 397;
    442     // CSSPropertyImageResolution has been removed, was return 398;
    443 #if defined(ENABLE_CSS_COMPOSITING) && ENABLE_CSS_COMPOSITING
    444     case CSSPropertyWebkitBlendMode: return 399;
    445     case CSSPropertyWebkitBackgroundBlendMode: return 400;
    446 #endif
    447     case CSSPropertyTextDecorationLine: return 401;
    448     case CSSPropertyTextDecorationStyle: return 402;
    449     case CSSPropertyTextDecorationColor: return 403;
    450     case CSSPropertyTextAlignLast: return 404;
    451     case CSSPropertyTextUnderlinePosition: return 405;
    452     case CSSPropertyMaxZoom: return 406;
    453     case CSSPropertyMinZoom: return 407;
    454     case CSSPropertyOrientation: return 408;
    455     case CSSPropertyUserZoom: return 409;
    456     // CSSPropertyWebkitDashboardRegion was 410.
    457     // CSSPropertyWebkitOverflowScrolling was 411.
    458     case CSSPropertyWebkitAppRegion: return 412;
    459     case CSSPropertyWebkitFilter: return 413;
    460     case CSSPropertyWebkitBoxDecorationBreak: return 414;
    461     case CSSPropertyWebkitTapHighlightColor: return 415;
    462     case CSSPropertyBufferedRendering: return 416;
    463     case CSSPropertyGridAutoRows: return 417;
    464     case CSSPropertyGridAutoColumns: return 418;
    465     case CSSPropertyBackgroundBlendMode: return 419;
    466     case CSSPropertyMixBlendMode: return 420;
    467     case CSSPropertyTouchAction: return 421;
    468     case CSSPropertyGridArea: return 422;
    469     case CSSPropertyGridTemplateAreas: return 423;
    470     case CSSPropertyAnimation: return 424;
    471     case CSSPropertyAnimationDelay: return 425;
    472     case CSSPropertyAnimationDirection: return 426;
    473     case CSSPropertyAnimationDuration: return 427;
    474     case CSSPropertyAnimationFillMode: return 428;
    475     case CSSPropertyAnimationIterationCount: return 429;
    476     case CSSPropertyAnimationName: return 430;
    477     case CSSPropertyAnimationPlayState: return 431;
    478     case CSSPropertyAnimationTimingFunction: return 432;
    479     case CSSPropertyObjectFit: return 433;
    480     case CSSPropertyPaintOrder: return 434;
    481     case CSSPropertyMaskSourceType: return 435;
    482     case CSSPropertyIsolation: return 436;
    483     case CSSPropertyObjectPosition: return 437;
    484     // case CSSPropertyInternalCallback: return 438;
    485     case CSSPropertyShapeImageThreshold: return 439;
    486     case CSSPropertyColumnFill: return 440;
    487     case CSSPropertyTextJustify: return 441;
    488     case CSSPropertyTouchActionDelay: return 442;
    489     case CSSPropertyJustifySelf: return 443;
    490     case CSSPropertyScrollBehavior: return 444;
    491     case CSSPropertyWillChange: return 445;
    492     case CSSPropertyTransform: return 446;
    493     case CSSPropertyTransformOrigin: return 447;
    494     case CSSPropertyTransformStyle: return 448;
    495     case CSSPropertyPerspective: return 449;
    496     case CSSPropertyPerspectiveOrigin: return 450;
    497     case CSSPropertyBackfaceVisibility: return 451;
    498     case CSSPropertyGridTemplate: return 452;
    499     case CSSPropertyGrid: return 453;
    500     case CSSPropertyAll: return 454;
    501     case CSSPropertyJustifyItems: return 455;
    502 
    503     // 1. Add new features above this line (don't change the assigned numbers of the existing
    504     // items).
    505     // 2. Update maximumCSSSampleId() with the new maximum value.
    506     // 3. Run the update_use_counter_css.py script in
    507     // chromium/src/tools/metrics/histograms to update the UMA histogram names.
    508 
    509     // Internal properties should not be counted.
    510     case CSSPropertyInternalMarqueeDirection:
    511     case CSSPropertyInternalMarqueeIncrement:
    512     case CSSPropertyInternalMarqueeRepetition:
    513     case CSSPropertyInternalMarqueeSpeed:
    514     case CSSPropertyInternalMarqueeStyle:
    515     case CSSPropertyInvalid:
    516         ASSERT_NOT_REACHED();
    517         return 0;
    518     }
    519 
    520     ASSERT_NOT_REACHED();
    521     return 0;
    522 }
    523 
    524 static int maximumCSSSampleId() { return 455; }
    525 
    526 void UseCounter::muteForInspector()
    527 {
    528     UseCounter::m_muteCount++;
    529 }
    530 
    531 void UseCounter::unmuteForInspector()
    532 {
    533     UseCounter::m_muteCount--;
    534 }
    535 
    536 UseCounter::UseCounter()
    537 {
    538     m_CSSFeatureBits.ensureSize(lastCSSProperty + 1);
    539     m_CSSFeatureBits.clearAll();
    540 }
    541 
    542 UseCounter::~UseCounter()
    543 {
    544     // We always log PageDestruction so that we have a scale for the rest of the features.
    545     blink::Platform::current()->histogramEnumeration("WebCore.FeatureObserver", PageDestruction, NumberOfFeatures);
    546 
    547     updateMeasurements();
    548 }
    549 
    550 void UseCounter::updateMeasurements()
    551 {
    552     blink::Platform::current()->histogramEnumeration("WebCore.FeatureObserver", PageVisits, NumberOfFeatures);
    553 
    554     if (m_countBits) {
    555         for (unsigned i = 0; i < NumberOfFeatures; ++i) {
    556             if (m_countBits->quickGet(i))
    557                 blink::Platform::current()->histogramEnumeration("WebCore.FeatureObserver", i, NumberOfFeatures);
    558         }
    559         // Clearing count bits is timing sensitive.
    560         m_countBits->clearAll();
    561     }
    562 
    563     // FIXME: Sometimes this function is called more than once per page. The following
    564     //        bool guards against incrementing the page count when there are no CSS
    565     //        bits set. http://crbug.com/236262.
    566     bool needsPagesMeasuredUpdate = false;
    567     for (int i = firstCSSProperty; i <= lastCSSProperty; ++i) {
    568         if (m_CSSFeatureBits.quickGet(i)) {
    569             int cssSampleId = mapCSSPropertyIdToCSSSampleIdForHistogram(i);
    570             blink::Platform::current()->histogramEnumeration("WebCore.FeatureObserver.CSSProperties", cssSampleId, maximumCSSSampleId());
    571             needsPagesMeasuredUpdate = true;
    572         }
    573     }
    574 
    575     if (needsPagesMeasuredUpdate)
    576         blink::Platform::current()->histogramEnumeration("WebCore.FeatureObserver.CSSProperties", totalPagesMeasuredCSSSampleId(), maximumCSSSampleId());
    577 
    578     m_CSSFeatureBits.clearAll();
    579 }
    580 
    581 void UseCounter::didCommitLoad()
    582 {
    583     updateMeasurements();
    584 }
    585 
    586 void UseCounter::count(const Document& document, Feature feature)
    587 {
    588     FrameHost* host = document.frameHost();
    589     if (!host)
    590         return;
    591 
    592     ASSERT(host->useCounter().deprecationMessage(feature).isEmpty());
    593     host->useCounter().recordMeasurement(feature);
    594 }
    595 
    596 void UseCounter::count(const ExecutionContext* context, Feature feature)
    597 {
    598     if (!context)
    599         return;
    600     if (context->isDocument()) {
    601         count(*toDocument(context), feature);
    602         return;
    603     }
    604     if (context->isWorkerGlobalScope())
    605         toWorkerGlobalScope(context)->countFeature(feature);
    606 }
    607 
    608 void UseCounter::countDeprecation(ExecutionContext* context, Feature feature)
    609 {
    610     if (!context)
    611         return;
    612     if (context->isDocument()) {
    613         UseCounter::countDeprecation(*toDocument(context), feature);
    614         return;
    615     }
    616     if (context->isWorkerGlobalScope())
    617         toWorkerGlobalScope(context)->countDeprecation(feature);
    618 }
    619 
    620 void UseCounter::countDeprecation(const LocalDOMWindow* window, Feature feature)
    621 {
    622     if (!window || !window->document())
    623         return;
    624     UseCounter::countDeprecation(*window->document(), feature);
    625 }
    626 
    627 void UseCounter::countDeprecation(const Document& document, Feature feature)
    628 {
    629     FrameHost* host = document.frameHost();
    630     LocalFrame* frame = document.frame();
    631     if (!host || !frame)
    632         return;
    633 
    634     if (host->useCounter().recordMeasurement(feature)) {
    635         ASSERT(!host->useCounter().deprecationMessage(feature).isEmpty());
    636         frame->console().addMessage(ConsoleMessage::create(DeprecationMessageSource, WarningMessageLevel, host->useCounter().deprecationMessage(feature)));
    637     }
    638 }
    639 
    640 // FIXME: Update other UseCounter::deprecationMessage() cases to use this.
    641 static String replacedBy(const char* oldString, const char* newString)
    642 {
    643     return String::format("'%s' is deprecated. Please use '%s' instead.", oldString, newString);
    644 }
    645 
    646 String UseCounter::deprecationMessage(Feature feature)
    647 {
    648     switch (feature) {
    649     // Quota
    650     case PrefixedStorageInfo:
    651         return "'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead.";
    652 
    653     // Keyboard Event (DOM Level 3)
    654     case KeyboardEventKeyLocation:
    655         return replacedBy("KeyboardEvent.keyLocation", "KeyboardEvent.location");
    656 
    657     case ConsoleMarkTimeline:
    658         return "console.markTimeline is deprecated. Please use the console.timeStamp instead.";
    659 
    660     case FileError:
    661         return "FileError is deprecated. Please use the 'name' or 'message' attributes of DOMError rather than 'code'.";
    662 
    663     case ShowModalDialog:
    664         return "showModalDialog is deprecated. Please use window.open and postMessage instead.";
    665 
    666     case CSSStyleSheetInsertRuleOptionalArg:
    667         return "Calling CSSStyleSheet.insertRule() with one argument is deprecated. Please pass the index argument as well: insertRule(x, 0).";
    668 
    669     case PrefixedVideoSupportsFullscreen:
    670         return "'HTMLVideoElement.webkitSupportsFullscreen' is deprecated. Its value is true if the video is loaded.";
    671 
    672     case PrefixedVideoDisplayingFullscreen:
    673         return "'HTMLVideoElement.webkitDisplayingFullscreen' is deprecated. Please use the 'fullscreenchange' and 'webkitfullscreenchange' events instead.";
    674 
    675     case PrefixedVideoEnterFullscreen:
    676         return "'HTMLVideoElement.webkitEnterFullscreen()' is deprecated. Please use 'Element.requestFullscreen()' and 'Element.webkitRequestFullscreen()' instead.";
    677 
    678     case PrefixedVideoExitFullscreen:
    679         return "'HTMLVideoElement.webkitExitFullscreen()' is deprecated. Please use 'Document.exitFullscreen()' and 'Document.webkitExitFullscreen()' instead.";
    680 
    681     case PrefixedVideoEnterFullScreen:
    682         return "'HTMLVideoElement.webkitEnterFullScreen()' is deprecated. Please use 'Element.requestFullscreen()' and 'Element.webkitRequestFullscreen()' instead.";
    683 
    684     case PrefixedVideoExitFullScreen:
    685         return "'HTMLVideoElement.webkitExitFullScreen()' is deprecated. Please use 'Document.exitFullscreen()' and 'Document.webkitExitFullscreen()' instead.";
    686 
    687     case MediaErrorEncrypted:
    688         return "'MediaError.MEDIA_ERR_ENCRYPTED' is deprecated. This error code is never used.";
    689 
    690     case PrefixedGamepad:
    691         return replacedBy("navigator.webkitGetGamepads", "navigator.getGamepads");
    692 
    693     case PrefixedIndexedDB:
    694         return replacedBy("webkitIndexedDB", "indexedDB");
    695 
    696     case PrefixedIDBCursorConstructor:
    697         return replacedBy("webkitIDBCursor", "IDBCursor");
    698 
    699     case PrefixedIDBDatabaseConstructor:
    700         return replacedBy("webkitIDBDatabase", "IDBDatabase");
    701 
    702     case PrefixedIDBFactoryConstructor:
    703         return replacedBy("webkitIDBFactory", "IDBFactory");
    704 
    705     case PrefixedIDBIndexConstructor:
    706         return replacedBy("webkitIDBIndex", "IDBIndex");
    707 
    708     case PrefixedIDBKeyRangeConstructor:
    709         return replacedBy("webkitIDBKeyRange", "IDBKeyRange");
    710 
    711     case PrefixedIDBObjectStoreConstructor:
    712         return replacedBy("webkitIDBObjectStore", "IDBObjectStore");
    713 
    714     case PrefixedIDBRequestConstructor:
    715         return replacedBy("webkitIDBRequest", "IDBRequest");
    716 
    717     case PrefixedIDBTransactionConstructor:
    718         return replacedBy("webkitIDBTransaction", "IDBTransaction");
    719 
    720     case PrefixedRequestAnimationFrame:
    721         return "'webkitRequestAnimationFrame' is vendor-specific. Please use the standard 'requestAnimationFrame' instead.";
    722 
    723     case PrefixedCancelAnimationFrame:
    724         return "'webkitCancelAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
    725 
    726     case PrefixedCancelRequestAnimationFrame:
    727         return "'webkitCancelRequestAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
    728 
    729     case DocumentCreateAttributeNS:
    730         return "'Document.createAttributeNS' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
    731 
    732     case AttributeOwnerElement:
    733         return "'Attr.ownerElement' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
    734 
    735     case ElementSetAttributeNodeNS:
    736         return "'Element.setAttributeNodeNS' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
    737 
    738     case NodeIteratorDetach:
    739         return "'NodeIterator.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-nodeiterator-detach).";
    740 
    741     case AttrNodeValue:
    742         return replacedBy("Attr.nodeValue", "value");
    743 
    744     case AttrTextContent:
    745         return replacedBy("Attr.textContent", "value");
    746 
    747     case NodeIteratorExpandEntityReferences:
    748         return "'NodeIterator.expandEntityReferences' is deprecated and has been removed from DOM. It always returns false.";
    749 
    750     case TreeWalkerExpandEntityReferences:
    751         return "'TreeWalker.expandEntityReferences' is deprecated and has been removed from DOM. It always returns false.";
    752 
    753     case RangeDetach:
    754         return "'Range.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-range-detach).";
    755 
    756     case OverflowChangedEvent:
    757         return "The 'overflowchanged' event is deprecated and may be removed. Please do not use it.";
    758 
    759     case HTMLHeadElementProfile:
    760         return "'HTMLHeadElement.profile' is deprecated. The reflected attribute has no effect.";
    761 
    762     case ElementSetPrefix:
    763         return "Setting 'Element.prefix' is deprecated, as it is read-only per DOM (http://dom.spec.whatwg.org/#element).";
    764 
    765     case SyncXHRWithCredentials:
    766         return "Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.";
    767 
    768     case EventSourceURL:
    769         return "'EventSource.URL' is deprecated. Please use 'EventSource.url' instead.";
    770 
    771     case WebSocketURL:
    772         return "'WebSocket.URL' is deprecated. Please use 'WebSocket.url' instead.";
    773 
    774     case HTMLTableElementVspace:
    775         return "The 'vspace' attribute on table is deprecated. Please use CSS instead.";
    776 
    777     case HTMLTableElementHspace:
    778         return "The 'hspace' attribute on table is deprecated. Please use CSS instead.";
    779 
    780     case PictureSourceSrc:
    781         return "<source src> with a <picture> parent is invalid and therefore ignored. Please use <source srcset> instead.";
    782 
    783     case XHRProgressEventPosition:
    784         return "The XMLHttpRequest progress event property 'position' is deprecated. Please use 'loaded' instead.";
    785 
    786     case XHRProgressEventTotalSize:
    787         return "The XMLHttpRequest progress event property 'totalSize' is deprecated. Please use 'total' instead.";
    788 
    789     case ConsoleTimeline:
    790         return "console.timeline is deprecated. Please use the console.time instead.";
    791 
    792     case ConsoleTimelineEnd:
    793         return "console.timelineEnd is deprecated. Please use the console.timeEnd instead.";
    794 
    795     // Features that aren't deprecated don't have a deprecation message.
    796     default:
    797         return String();
    798     }
    799 }
    800 
    801 void UseCounter::count(CSSParserContext context, CSSPropertyID feature)
    802 {
    803     ASSERT(feature >= firstCSSProperty);
    804     ASSERT(feature <= lastCSSProperty);
    805     ASSERT(!isInternalProperty(feature));
    806 
    807     if (!isUseCounterEnabledForMode(context.mode()))
    808         return;
    809 
    810     m_CSSFeatureBits.quickSet(feature);
    811 }
    812 
    813 void UseCounter::count(Feature feature)
    814 {
    815     ASSERT(deprecationMessage(feature).isEmpty());
    816     recordMeasurement(feature);
    817 }
    818 
    819 UseCounter* UseCounter::getFrom(const Document* document)
    820 {
    821     if (document && document->frameHost())
    822         return &document->frameHost()->useCounter();
    823     return 0;
    824 }
    825 
    826 UseCounter* UseCounter::getFrom(const CSSStyleSheet* sheet)
    827 {
    828     if (sheet)
    829         return getFrom(sheet->contents());
    830     return 0;
    831 }
    832 
    833 UseCounter* UseCounter::getFrom(const StyleSheetContents* sheetContents)
    834 {
    835     // FIXME: We may want to handle stylesheets that have multiple owners
    836     //        http://crbug.com/242125
    837     if (sheetContents && sheetContents->hasSingleOwnerNode())
    838         return getFrom(sheetContents->singleOwnerDocument());
    839     return 0;
    840 }
    841 
    842 } // namespace blink
    843