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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // IPC messages for page rendering.
      6 // Multiply-included message file, hence no include guard.
      7 
      8 #include "base/memory/shared_memory.h"
      9 #include "base/process/process.h"
     10 #include "base/strings/string16.h"
     11 #include "cc/output/begin_frame_args.h"
     12 #include "cc/output/compositor_frame.h"
     13 #include "cc/output/compositor_frame_ack.h"
     14 #include "content/common/browser_rendering_stats.h"
     15 #include "content/common/content_export.h"
     16 #include "content/common/content_param_traits.h"
     17 #include "content/common/cookie_data.h"
     18 #include "content/common/navigation_gesture.h"
     19 #include "content/common/pepper_renderer_instance_data.h"
     20 #include "content/common/view_message_enums.h"
     21 #include "content/common/webplugin_geometry.h"
     22 #include "content/port/common/input_event_ack_state.h"
     23 #include "content/public/common/common_param_traits.h"
     24 #include "content/public/common/context_menu_params.h"
     25 #include "content/public/common/favicon_url.h"
     26 #include "content/public/common/file_chooser_params.h"
     27 #include "content/public/common/frame_navigate_params.h"
     28 #include "content/public/common/javascript_message_type.h"
     29 #include "content/public/common/menu_item.h"
     30 #include "content/public/common/page_state.h"
     31 #include "content/public/common/page_zoom.h"
     32 #include "content/public/common/referrer.h"
     33 #include "content/public/common/renderer_preferences.h"
     34 #include "content/public/common/stop_find_action.h"
     35 #include "content/public/common/three_d_api_types.h"
     36 #include "content/public/common/window_container_type.h"
     37 #include "ipc/ipc_channel_handle.h"
     38 #include "ipc/ipc_message_macros.h"
     39 #include "ipc/ipc_platform_file.h"
     40 #include "media/audio/audio_parameters.h"
     41 #include "media/base/channel_layout.h"
     42 #include "media/base/media_log_event.h"
     43 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
     44 #include "third_party/WebKit/public/platform/WebFloatRect.h"
     45 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
     46 #include "third_party/WebKit/public/web/WebFindOptions.h"
     47 #include "third_party/WebKit/public/web/WebMediaPlayerAction.h"
     48 #include "third_party/WebKit/public/web/WebPluginAction.h"
     49 #include "third_party/WebKit/public/web/WebPopupType.h"
     50 #include "third_party/WebKit/public/web/WebScreenInfo.h"
     51 #include "third_party/WebKit/public/web/WebTextDirection.h"
     52 #include "third_party/skia/include/core/SkBitmap.h"
     53 #include "ui/base/ime/text_input_mode.h"
     54 #include "ui/base/ime/text_input_type.h"
     55 #include "ui/base/range/range.h"
     56 #include "ui/base/ui_base_types.h"
     57 #include "ui/gfx/point.h"
     58 #include "ui/gfx/rect.h"
     59 #include "ui/gfx/rect_f.h"
     60 #include "ui/gfx/vector2d.h"
     61 #include "ui/gfx/vector2d_f.h"
     62 #include "ui/shell_dialogs/selected_file_info.h"
     63 
     64 #if defined(OS_MACOSX)
     65 #include "content/common/mac/font_descriptor.h"
     66 #endif
     67 
     68 #undef IPC_MESSAGE_EXPORT
     69 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
     70 
     71 #define IPC_MESSAGE_START ViewMsgStart
     72 
     73 IPC_ENUM_TRAITS(AccessibilityMode)
     74 IPC_ENUM_TRAITS(ViewMsg_Navigate_Type::Value)
     75 IPC_ENUM_TRAITS(WebKit::WebContextMenuData::MediaType)
     76 IPC_ENUM_TRAITS(WebKit::WebMediaPlayerAction::Type)
     77 IPC_ENUM_TRAITS(WebKit::WebPluginAction::Type)
     78 IPC_ENUM_TRAITS(WebKit::WebPopupType)
     79 IPC_ENUM_TRAITS(WebKit::WebTextDirection)
     80 IPC_ENUM_TRAITS(WindowContainerType)
     81 IPC_ENUM_TRAITS(content::FaviconURL::IconType)
     82 IPC_ENUM_TRAITS(content::FileChooserParams::Mode)
     83 IPC_ENUM_TRAITS(content::JavaScriptMessageType)
     84 IPC_ENUM_TRAITS(content::MenuItem::Type)
     85 IPC_ENUM_TRAITS(content::NavigationGesture)
     86 IPC_ENUM_TRAITS(content::PageZoom)
     87 IPC_ENUM_TRAITS(content::RendererPreferencesHintingEnum)
     88 IPC_ENUM_TRAITS(content::RendererPreferencesSubpixelRenderingEnum)
     89 IPC_ENUM_TRAITS_MAX_VALUE(content::TapMultipleTargetsStrategy,
     90                           content::TAP_MULTIPLE_TARGETS_STRATEGY_MAX)
     91 IPC_ENUM_TRAITS(content::StopFindAction)
     92 IPC_ENUM_TRAITS(content::ThreeDAPIType)
     93 IPC_ENUM_TRAITS(media::ChannelLayout)
     94 IPC_ENUM_TRAITS(media::MediaLogEvent::Type)
     95 IPC_ENUM_TRAITS(ui::MenuSourceType)
     96 IPC_ENUM_TRAITS_MAX_VALUE(ui::TextInputMode, ui::TEXT_INPUT_MODE_MAX)
     97 IPC_ENUM_TRAITS(ui::TextInputType)
     98 
     99 #if defined(OS_MACOSX)
    100 IPC_STRUCT_TRAITS_BEGIN(FontDescriptor)
    101   IPC_STRUCT_TRAITS_MEMBER(font_name)
    102   IPC_STRUCT_TRAITS_MEMBER(font_point_size)
    103 IPC_STRUCT_TRAITS_END()
    104 #endif
    105 
    106 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebCompositionUnderline)
    107   IPC_STRUCT_TRAITS_MEMBER(startOffset)
    108   IPC_STRUCT_TRAITS_MEMBER(endOffset)
    109   IPC_STRUCT_TRAITS_MEMBER(color)
    110   IPC_STRUCT_TRAITS_MEMBER(thick)
    111 IPC_STRUCT_TRAITS_END()
    112 
    113 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebFindOptions)
    114   IPC_STRUCT_TRAITS_MEMBER(forward)
    115   IPC_STRUCT_TRAITS_MEMBER(matchCase)
    116   IPC_STRUCT_TRAITS_MEMBER(findNext)
    117 IPC_STRUCT_TRAITS_END()
    118 
    119 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebMediaPlayerAction)
    120   IPC_STRUCT_TRAITS_MEMBER(type)
    121   IPC_STRUCT_TRAITS_MEMBER(enable)
    122 IPC_STRUCT_TRAITS_END()
    123 
    124 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebPluginAction)
    125   IPC_STRUCT_TRAITS_MEMBER(type)
    126   IPC_STRUCT_TRAITS_MEMBER(enable)
    127 IPC_STRUCT_TRAITS_END()
    128 
    129 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebFloatPoint)
    130   IPC_STRUCT_TRAITS_MEMBER(x)
    131   IPC_STRUCT_TRAITS_MEMBER(y)
    132 IPC_STRUCT_TRAITS_END()
    133 
    134 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebFloatRect)
    135   IPC_STRUCT_TRAITS_MEMBER(x)
    136   IPC_STRUCT_TRAITS_MEMBER(y)
    137   IPC_STRUCT_TRAITS_MEMBER(width)
    138   IPC_STRUCT_TRAITS_MEMBER(height)
    139 IPC_STRUCT_TRAITS_END()
    140 
    141 IPC_STRUCT_TRAITS_BEGIN(WebKit::WebScreenInfo)
    142   IPC_STRUCT_TRAITS_MEMBER(deviceScaleFactor)
    143   IPC_STRUCT_TRAITS_MEMBER(depth)
    144   IPC_STRUCT_TRAITS_MEMBER(depthPerComponent)
    145   IPC_STRUCT_TRAITS_MEMBER(isMonochrome)
    146   IPC_STRUCT_TRAITS_MEMBER(rect)
    147   IPC_STRUCT_TRAITS_MEMBER(availableRect)
    148 IPC_STRUCT_TRAITS_END()
    149 
    150 IPC_STRUCT_TRAITS_BEGIN(content::MenuItem)
    151   IPC_STRUCT_TRAITS_MEMBER(label)
    152   IPC_STRUCT_TRAITS_MEMBER(tool_tip)
    153   IPC_STRUCT_TRAITS_MEMBER(type)
    154   IPC_STRUCT_TRAITS_MEMBER(action)
    155   IPC_STRUCT_TRAITS_MEMBER(rtl)
    156   IPC_STRUCT_TRAITS_MEMBER(has_directional_override)
    157   IPC_STRUCT_TRAITS_MEMBER(enabled)
    158   IPC_STRUCT_TRAITS_MEMBER(checked)
    159   IPC_STRUCT_TRAITS_MEMBER(submenu)
    160 IPC_STRUCT_TRAITS_END()
    161 
    162 IPC_STRUCT_TRAITS_BEGIN(content::ContextMenuParams)
    163   IPC_STRUCT_TRAITS_MEMBER(media_type)
    164   IPC_STRUCT_TRAITS_MEMBER(x)
    165   IPC_STRUCT_TRAITS_MEMBER(y)
    166   IPC_STRUCT_TRAITS_MEMBER(link_url)
    167   IPC_STRUCT_TRAITS_MEMBER(link_text)
    168   IPC_STRUCT_TRAITS_MEMBER(unfiltered_link_url)
    169   IPC_STRUCT_TRAITS_MEMBER(src_url)
    170   IPC_STRUCT_TRAITS_MEMBER(is_image_blocked)
    171   IPC_STRUCT_TRAITS_MEMBER(page_url)
    172   IPC_STRUCT_TRAITS_MEMBER(keyword_url)
    173   IPC_STRUCT_TRAITS_MEMBER(frame_url)
    174   IPC_STRUCT_TRAITS_MEMBER(frame_page_state)
    175   IPC_STRUCT_TRAITS_MEMBER(media_flags)
    176   IPC_STRUCT_TRAITS_MEMBER(selection_text)
    177   IPC_STRUCT_TRAITS_MEMBER(misspelled_word)
    178   IPC_STRUCT_TRAITS_MEMBER(misspelling_hash)
    179   IPC_STRUCT_TRAITS_MEMBER(dictionary_suggestions)
    180   IPC_STRUCT_TRAITS_MEMBER(speech_input_enabled)
    181   IPC_STRUCT_TRAITS_MEMBER(spellcheck_enabled)
    182   IPC_STRUCT_TRAITS_MEMBER(is_editable)
    183 #if defined(OS_MACOSX)
    184   IPC_STRUCT_TRAITS_MEMBER(writing_direction_default)
    185   IPC_STRUCT_TRAITS_MEMBER(writing_direction_left_to_right)
    186   IPC_STRUCT_TRAITS_MEMBER(writing_direction_right_to_left)
    187 #endif  // OS_MACOSX
    188   IPC_STRUCT_TRAITS_MEMBER(edit_flags)
    189   IPC_STRUCT_TRAITS_MEMBER(security_info)
    190   IPC_STRUCT_TRAITS_MEMBER(frame_charset)
    191   IPC_STRUCT_TRAITS_MEMBER(referrer_policy)
    192   IPC_STRUCT_TRAITS_MEMBER(custom_context)
    193   IPC_STRUCT_TRAITS_MEMBER(custom_items)
    194   IPC_STRUCT_TRAITS_MEMBER(source_type)
    195 #if defined(OS_ANDROID)
    196   IPC_STRUCT_TRAITS_MEMBER(selection_start)
    197   IPC_STRUCT_TRAITS_MEMBER(selection_end)
    198 #endif
    199 IPC_STRUCT_TRAITS_END()
    200 
    201 IPC_STRUCT_TRAITS_BEGIN(content::CustomContextMenuContext)
    202   IPC_STRUCT_TRAITS_MEMBER(is_pepper_menu)
    203   IPC_STRUCT_TRAITS_MEMBER(request_id)
    204   IPC_STRUCT_TRAITS_MEMBER(render_widget_id)
    205 IPC_STRUCT_TRAITS_END()
    206 
    207 IPC_STRUCT_TRAITS_BEGIN(content::FaviconURL)
    208   IPC_STRUCT_TRAITS_MEMBER(icon_url)
    209   IPC_STRUCT_TRAITS_MEMBER(icon_type)
    210 IPC_STRUCT_TRAITS_END()
    211 
    212 IPC_STRUCT_TRAITS_BEGIN(content::FileChooserParams)
    213   IPC_STRUCT_TRAITS_MEMBER(mode)
    214   IPC_STRUCT_TRAITS_MEMBER(title)
    215   IPC_STRUCT_TRAITS_MEMBER(default_file_name)
    216   IPC_STRUCT_TRAITS_MEMBER(accept_types)
    217 #if defined(OS_ANDROID)
    218   IPC_STRUCT_TRAITS_MEMBER(capture)
    219 #endif
    220 IPC_STRUCT_TRAITS_END()
    221 
    222 IPC_STRUCT_TRAITS_BEGIN(content::FrameNavigateParams)
    223   IPC_STRUCT_TRAITS_MEMBER(page_id)
    224   IPC_STRUCT_TRAITS_MEMBER(url)
    225   IPC_STRUCT_TRAITS_MEMBER(base_url)
    226   IPC_STRUCT_TRAITS_MEMBER(referrer)
    227   IPC_STRUCT_TRAITS_MEMBER(transition)
    228   IPC_STRUCT_TRAITS_MEMBER(redirects)
    229   IPC_STRUCT_TRAITS_MEMBER(should_update_history)
    230   IPC_STRUCT_TRAITS_MEMBER(searchable_form_url)
    231   IPC_STRUCT_TRAITS_MEMBER(searchable_form_encoding)
    232   IPC_STRUCT_TRAITS_MEMBER(password_form)
    233   IPC_STRUCT_TRAITS_MEMBER(contents_mime_type)
    234   IPC_STRUCT_TRAITS_MEMBER(socket_address)
    235 IPC_STRUCT_TRAITS_END()
    236 
    237 IPC_STRUCT_TRAITS_BEGIN(content::PepperRendererInstanceData)
    238   IPC_STRUCT_TRAITS_MEMBER(render_process_id)
    239   IPC_STRUCT_TRAITS_MEMBER(render_view_id)
    240   IPC_STRUCT_TRAITS_MEMBER(document_url)
    241   IPC_STRUCT_TRAITS_MEMBER(plugin_url)
    242 IPC_STRUCT_TRAITS_END()
    243 
    244 IPC_STRUCT_TRAITS_BEGIN(content::RendererPreferences)
    245   IPC_STRUCT_TRAITS_MEMBER(can_accept_load_drops)
    246   IPC_STRUCT_TRAITS_MEMBER(should_antialias_text)
    247   IPC_STRUCT_TRAITS_MEMBER(hinting)
    248   IPC_STRUCT_TRAITS_MEMBER(use_autohinter)
    249   IPC_STRUCT_TRAITS_MEMBER(use_bitmaps)
    250   IPC_STRUCT_TRAITS_MEMBER(subpixel_rendering)
    251   IPC_STRUCT_TRAITS_MEMBER(use_subpixel_positioning)
    252   IPC_STRUCT_TRAITS_MEMBER(focus_ring_color)
    253   IPC_STRUCT_TRAITS_MEMBER(thumb_active_color)
    254   IPC_STRUCT_TRAITS_MEMBER(thumb_inactive_color)
    255   IPC_STRUCT_TRAITS_MEMBER(track_color)
    256   IPC_STRUCT_TRAITS_MEMBER(active_selection_bg_color)
    257   IPC_STRUCT_TRAITS_MEMBER(active_selection_fg_color)
    258   IPC_STRUCT_TRAITS_MEMBER(inactive_selection_bg_color)
    259   IPC_STRUCT_TRAITS_MEMBER(inactive_selection_fg_color)
    260   IPC_STRUCT_TRAITS_MEMBER(browser_handles_non_local_top_level_requests)
    261   IPC_STRUCT_TRAITS_MEMBER(browser_handles_all_top_level_requests)
    262   IPC_STRUCT_TRAITS_MEMBER(caret_blink_interval)
    263   IPC_STRUCT_TRAITS_MEMBER(use_custom_colors)
    264   IPC_STRUCT_TRAITS_MEMBER(enable_referrers)
    265   IPC_STRUCT_TRAITS_MEMBER(enable_do_not_track)
    266   IPC_STRUCT_TRAITS_MEMBER(default_zoom_level)
    267   IPC_STRUCT_TRAITS_MEMBER(user_agent_override)
    268   IPC_STRUCT_TRAITS_MEMBER(accept_languages)
    269   IPC_STRUCT_TRAITS_MEMBER(report_frame_name_changes)
    270   IPC_STRUCT_TRAITS_MEMBER(touchpad_fling_profile)
    271   IPC_STRUCT_TRAITS_MEMBER(touchscreen_fling_profile)
    272   IPC_STRUCT_TRAITS_MEMBER(tap_multiple_targets_strategy)
    273 IPC_STRUCT_TRAITS_END()
    274 
    275 IPC_STRUCT_TRAITS_BEGIN(content::CookieData)
    276   IPC_STRUCT_TRAITS_MEMBER(name)
    277   IPC_STRUCT_TRAITS_MEMBER(value)
    278   IPC_STRUCT_TRAITS_MEMBER(domain)
    279   IPC_STRUCT_TRAITS_MEMBER(path)
    280   IPC_STRUCT_TRAITS_MEMBER(expires)
    281   IPC_STRUCT_TRAITS_MEMBER(http_only)
    282   IPC_STRUCT_TRAITS_MEMBER(secure)
    283   IPC_STRUCT_TRAITS_MEMBER(session)
    284 IPC_STRUCT_TRAITS_END()
    285 
    286 IPC_STRUCT_TRAITS_BEGIN(content::WebPluginGeometry)
    287   IPC_STRUCT_TRAITS_MEMBER(window)
    288   IPC_STRUCT_TRAITS_MEMBER(window_rect)
    289   IPC_STRUCT_TRAITS_MEMBER(clip_rect)
    290   IPC_STRUCT_TRAITS_MEMBER(cutout_rects)
    291   IPC_STRUCT_TRAITS_MEMBER(rects_valid)
    292   IPC_STRUCT_TRAITS_MEMBER(visible)
    293 IPC_STRUCT_TRAITS_END()
    294 
    295 IPC_STRUCT_TRAITS_BEGIN(media::MediaLogEvent)
    296   IPC_STRUCT_TRAITS_MEMBER(id)
    297   IPC_STRUCT_TRAITS_MEMBER(type)
    298   IPC_STRUCT_TRAITS_MEMBER(params)
    299   IPC_STRUCT_TRAITS_MEMBER(time)
    300 IPC_STRUCT_TRAITS_END()
    301 
    302 IPC_STRUCT_TRAITS_BEGIN(ui::SelectedFileInfo)
    303   IPC_STRUCT_TRAITS_MEMBER(file_path)
    304   IPC_STRUCT_TRAITS_MEMBER(local_path)
    305   IPC_STRUCT_TRAITS_MEMBER(display_name)
    306 IPC_STRUCT_TRAITS_END()
    307 
    308 IPC_STRUCT_TRAITS_BEGIN(content::BrowserRenderingStats)
    309   IPC_STRUCT_TRAITS_MEMBER(input_event_count)
    310   IPC_STRUCT_TRAITS_MEMBER(total_input_latency)
    311   IPC_STRUCT_TRAITS_MEMBER(touch_ui_count)
    312   IPC_STRUCT_TRAITS_MEMBER(total_touch_ui_latency)
    313   IPC_STRUCT_TRAITS_MEMBER(touch_acked_count)
    314   IPC_STRUCT_TRAITS_MEMBER(total_touch_acked_latency)
    315   IPC_STRUCT_TRAITS_MEMBER(scroll_update_count)
    316   IPC_STRUCT_TRAITS_MEMBER(total_scroll_update_latency)
    317 IPC_STRUCT_TRAITS_END()
    318 
    319 IPC_STRUCT_BEGIN(ViewHostMsg_CreateWindow_Params)
    320   // Routing ID of the view initiating the open.
    321   IPC_STRUCT_MEMBER(int, opener_id)
    322 
    323   // True if this open request came in the context of a user gesture.
    324   IPC_STRUCT_MEMBER(bool, user_gesture)
    325 
    326   // Type of window requested.
    327   IPC_STRUCT_MEMBER(WindowContainerType, window_container_type)
    328 
    329   // The session storage namespace ID this view should use.
    330   IPC_STRUCT_MEMBER(int64, session_storage_namespace_id)
    331 
    332   // The name of the resulting frame that should be created (empty if none
    333   // has been specified).
    334   IPC_STRUCT_MEMBER(string16, frame_name)
    335 
    336   // The frame identifier of the frame initiating the open.
    337   IPC_STRUCT_MEMBER(int64, opener_frame_id)
    338 
    339   // The URL of the frame initiating the open.
    340   IPC_STRUCT_MEMBER(GURL, opener_url)
    341 
    342   // The URL of the top frame containing the opener.
    343   IPC_STRUCT_MEMBER(GURL, opener_top_level_frame_url)
    344 
    345   // The security origin of the frame initiating the open.
    346   IPC_STRUCT_MEMBER(GURL, opener_security_origin)
    347 
    348   // Whether the opener will be suppressed in the new window, in which case
    349   // scripting the new window is not allowed.
    350   IPC_STRUCT_MEMBER(bool, opener_suppressed)
    351 
    352   // Whether the window should be opened in the foreground, background, etc.
    353   IPC_STRUCT_MEMBER(WindowOpenDisposition, disposition)
    354 
    355   // The URL that will be loaded in the new window (empty if none has been
    356   // sepcified).
    357   IPC_STRUCT_MEMBER(GURL, target_url)
    358 
    359   // The referrer that will be used to load |target_url| (empty if none has
    360   // been specified).
    361   IPC_STRUCT_MEMBER(content::Referrer, referrer)
    362 
    363   // The window features to use for the new view.
    364   IPC_STRUCT_MEMBER(WebKit::WebWindowFeatures, features)
    365 IPC_STRUCT_END()
    366 
    367 IPC_STRUCT_BEGIN(ViewHostMsg_CreateWorker_Params)
    368   // URL for the worker script.
    369   IPC_STRUCT_MEMBER(GURL, url)
    370 
    371   // Name for a SharedWorker, otherwise empty string.
    372   IPC_STRUCT_MEMBER(string16, name)
    373 
    374   // The ID of the parent document (unique within parent renderer).
    375   IPC_STRUCT_MEMBER(unsigned long long, document_id)
    376 
    377   // RenderView routing id used to send messages back to the parent.
    378   IPC_STRUCT_MEMBER(int, render_view_route_id)
    379 
    380   // The route ID to associate with the worker. If MSG_ROUTING_NONE is passed,
    381   // a new unique ID is created and assigned to the worker.
    382   IPC_STRUCT_MEMBER(int, route_id)
    383 
    384   // The ID of the appcache the main shared worker script resource was loaded
    385   // from, only valid for shared workers.
    386   IPC_STRUCT_MEMBER(int64, script_resource_appcache_id)
    387 IPC_STRUCT_END()
    388 
    389 IPC_STRUCT_BEGIN(ViewHostMsg_DateTimeDialogValue_Params)
    390   IPC_STRUCT_MEMBER(int, dialog_type)
    391   IPC_STRUCT_MEMBER(int, year)
    392   IPC_STRUCT_MEMBER(int, month)
    393   IPC_STRUCT_MEMBER(int, day)
    394   IPC_STRUCT_MEMBER(int, hour)
    395   IPC_STRUCT_MEMBER(int, minute)
    396   IPC_STRUCT_MEMBER(int, second)
    397   IPC_STRUCT_MEMBER(int, week)
    398   IPC_STRUCT_MEMBER(double, minimum)
    399   IPC_STRUCT_MEMBER(double, maximum)
    400 IPC_STRUCT_END()
    401 
    402 IPC_STRUCT_BEGIN(ViewHostMsg_DidFailProvisionalLoadWithError_Params)
    403   // The frame ID for the failure report.
    404   IPC_STRUCT_MEMBER(int64, frame_id)
    405   // True if this is the top-most frame.
    406   IPC_STRUCT_MEMBER(bool, is_main_frame)
    407   // Error code as reported in the DidFailProvisionalLoad callback.
    408   IPC_STRUCT_MEMBER(int, error_code)
    409   // An error message generated from the error_code. This can be an empty
    410   // string if we were unable to find a meaningful description.
    411   IPC_STRUCT_MEMBER(string16, error_description)
    412   // The URL that the error is reported for.
    413   IPC_STRUCT_MEMBER(GURL, url)
    414   // True if the failure is the result of navigating to a POST again
    415   // and we're going to show the POST interstitial.
    416   IPC_STRUCT_MEMBER(bool, showing_repost_interstitial)
    417 IPC_STRUCT_END()
    418 
    419 // Parameters structure for ViewHostMsg_FrameNavigate, which has too many data
    420 // parameters to be reasonably put in a predefined IPC message.
    421 IPC_STRUCT_BEGIN_WITH_PARENT(ViewHostMsg_FrameNavigate_Params,
    422                              content::FrameNavigateParams)
    423   IPC_STRUCT_TRAITS_PARENT(content::FrameNavigateParams)
    424   // The frame ID for this navigation. The frame ID uniquely identifies the
    425   // frame the navigation happened in for a given renderer.
    426   IPC_STRUCT_MEMBER(int64, frame_id)
    427 
    428   // Information regarding the security of the connection (empty if the
    429   // connection was not secure).
    430   IPC_STRUCT_MEMBER(std::string, security_info)
    431 
    432   // The gesture that initiated this navigation.
    433   IPC_STRUCT_MEMBER(content::NavigationGesture, gesture)
    434 
    435   // True if this was a post request.
    436   IPC_STRUCT_MEMBER(bool, is_post)
    437 
    438   // The POST body identifier. -1 if it doesn't exist.
    439   IPC_STRUCT_MEMBER(int64, post_id)
    440 
    441   // Whether the frame navigation resulted in no change to the documents within
    442   // the page. For example, the navigation may have just resulted in scrolling
    443   // to a named anchor.
    444   IPC_STRUCT_MEMBER(bool, was_within_same_page)
    445 
    446   // The status code of the HTTP request.
    447   IPC_STRUCT_MEMBER(int, http_status_code)
    448 
    449   // True if the connection was proxied.  In this case, socket_address
    450   // will represent the address of the proxy, rather than the remote host.
    451   IPC_STRUCT_MEMBER(bool, was_fetched_via_proxy)
    452 
    453   // Serialized history item state to store in the navigation entry.
    454   IPC_STRUCT_MEMBER(content::PageState, page_state)
    455 
    456   // Original request's URL.
    457   IPC_STRUCT_MEMBER(GURL, original_request_url)
    458 
    459   // User agent override used to navigate.
    460   IPC_STRUCT_MEMBER(bool, is_overriding_user_agent)
    461 
    462   // Notifies the browser that for this navigation, the session history was
    463   // successfully cleared.
    464   IPC_STRUCT_MEMBER(bool, history_list_was_cleared)
    465 IPC_STRUCT_END()
    466 
    467 IPC_STRUCT_BEGIN(ViewHostMsg_OpenURL_Params)
    468   IPC_STRUCT_MEMBER(GURL, url)
    469   IPC_STRUCT_MEMBER(content::Referrer, referrer)
    470   IPC_STRUCT_MEMBER(WindowOpenDisposition, disposition)
    471   IPC_STRUCT_MEMBER(int64, frame_id)
    472   IPC_STRUCT_MEMBER(bool, should_replace_current_entry)
    473   IPC_STRUCT_MEMBER(bool, user_gesture)
    474 IPC_STRUCT_END()
    475 
    476 IPC_STRUCT_BEGIN(ViewHostMsg_SelectionBounds_Params)
    477   IPC_STRUCT_MEMBER(gfx::Rect, anchor_rect)
    478   IPC_STRUCT_MEMBER(WebKit::WebTextDirection, anchor_dir)
    479   IPC_STRUCT_MEMBER(gfx::Rect, focus_rect)
    480   IPC_STRUCT_MEMBER(WebKit::WebTextDirection, focus_dir)
    481   IPC_STRUCT_MEMBER(bool, is_anchor_first)
    482 IPC_STRUCT_END()
    483 
    484 // This message is used for supporting popup menus on Mac OS X using native
    485 // Cocoa controls. The renderer sends us this message which we use to populate
    486 // the popup menu.
    487 IPC_STRUCT_BEGIN(ViewHostMsg_ShowPopup_Params)
    488   // Position on the screen.
    489   IPC_STRUCT_MEMBER(gfx::Rect, bounds)
    490 
    491   // The height of each item in the menu.
    492   IPC_STRUCT_MEMBER(int, item_height)
    493 
    494   // The size of the font to use for those items.
    495   IPC_STRUCT_MEMBER(double, item_font_size)
    496 
    497   // The currently selected (displayed) item in the menu.
    498   IPC_STRUCT_MEMBER(int, selected_item)
    499 
    500   // The entire list of items in the popup menu.
    501   IPC_STRUCT_MEMBER(std::vector<content::MenuItem>, popup_items)
    502 
    503   // Whether items should be right-aligned.
    504   IPC_STRUCT_MEMBER(bool, right_aligned)
    505 
    506   // Whether this is a multi-select popup.
    507   IPC_STRUCT_MEMBER(bool, allow_multiple_selection)
    508 IPC_STRUCT_END()
    509 
    510 IPC_STRUCT_BEGIN(ViewHostMsg_TextInputState_Params)
    511   // The type of input field
    512   IPC_STRUCT_MEMBER(ui::TextInputType, type)
    513 
    514   // The value of the input field
    515   IPC_STRUCT_MEMBER(std::string, value)
    516 
    517   // The cursor position of the current selection start, or the caret position
    518   // if nothing is selected
    519   IPC_STRUCT_MEMBER(int, selection_start)
    520 
    521   // The cursor position of the current selection end, or the caret position
    522   // if nothing is selected
    523   IPC_STRUCT_MEMBER(int, selection_end)
    524 
    525   // The start position of the current composition, or -1 if there is none
    526   IPC_STRUCT_MEMBER(int, composition_start)
    527 
    528   // The end position of the current composition, or -1 if there is none
    529   IPC_STRUCT_MEMBER(int, composition_end)
    530 
    531   // Whether or not inline composition can be performed for the current input.
    532   IPC_STRUCT_MEMBER(bool, can_compose_inline)
    533 
    534   // Whether or not the IME should be shown as a result of this update. Even if
    535   // true, the IME will only be shown if the type is appropriate (e.g. not
    536   // TEXT_INPUT_TYPE_NONE).
    537   IPC_STRUCT_MEMBER(bool, show_ime_if_needed)
    538 
    539   // Whether an acknowledgement is required for this update.
    540   IPC_STRUCT_MEMBER(bool, require_ack)
    541 IPC_STRUCT_END()
    542 
    543 IPC_STRUCT_BEGIN(ViewHostMsg_UpdateRect_Params)
    544   // The bitmap to be painted into the view at the locations specified by
    545   // update_rects.
    546   IPC_STRUCT_MEMBER(TransportDIB::Id, bitmap)
    547 
    548   // The position and size of the bitmap.
    549   IPC_STRUCT_MEMBER(gfx::Rect, bitmap_rect)
    550 
    551   // The scroll delta.  Only one of the delta components can be non-zero, and if
    552   // they are both zero, then it means there is no scrolling and the scroll_rect
    553   // is ignored.
    554   IPC_STRUCT_MEMBER(gfx::Vector2d, scroll_delta)
    555 
    556   // The rectangular region to scroll.
    557   IPC_STRUCT_MEMBER(gfx::Rect, scroll_rect)
    558 
    559   // The scroll offset of the render view.
    560   IPC_STRUCT_MEMBER(gfx::Vector2d, scroll_offset)
    561 
    562   // The regions of the bitmap (in view coords) that contain updated pixels.
    563   // In the case of scrolling, this includes the scroll damage rect.
    564   IPC_STRUCT_MEMBER(std::vector<gfx::Rect>, copy_rects)
    565 
    566   // The size of the RenderView when this message was generated.  This is
    567   // included so the host knows how large the view is from the perspective of
    568   // the renderer process.  This is necessary in case a resize operation is in
    569   // progress. If auto-resize is enabled, this should update the corresponding
    570   // view size.
    571   IPC_STRUCT_MEMBER(gfx::Size, view_size)
    572 
    573   // New window locations for plugin child windows.
    574   IPC_STRUCT_MEMBER(std::vector<content::WebPluginGeometry>,
    575                     plugin_window_moves)
    576 
    577   // The following describes the various bits that may be set in flags:
    578   //
    579   //   ViewHostMsg_UpdateRect_Flags::IS_RESIZE_ACK
    580   //     Indicates that this is a response to a ViewMsg_Resize message.
    581   //
    582   //   ViewHostMsg_UpdateRect_Flags::IS_RESTORE_ACK
    583   //     Indicates that this is a response to a ViewMsg_WasShown message.
    584   //
    585   //   ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK
    586   //     Indicates that this is a response to a ViewMsg_Repaint message.
    587   //
    588   // If flags is zero, then this message corresponds to an unsolicited paint
    589   // request by the render view.  Any of the above bits may be set in flags,
    590   // which would indicate that this paint message is an ACK for multiple
    591   // request messages.
    592   IPC_STRUCT_MEMBER(int, flags)
    593 
    594   // Whether or not the renderer expects a ViewMsg_UpdateRect_ACK for this
    595   // update. True for 2D painting, but false for accelerated compositing.
    596   IPC_STRUCT_MEMBER(bool, needs_ack)
    597 
    598   // All the above coordinates are in DIP. This is the scale factor needed
    599   // to convert them to pixels.
    600   IPC_STRUCT_MEMBER(float, scale_factor)
    601 
    602   // The latency information for the frame. Only valid when accelerated
    603   // compositing is disabled.
    604   IPC_STRUCT_MEMBER(ui::LatencyInfo, latency_info)
    605 IPC_STRUCT_END()
    606 
    607 IPC_STRUCT_BEGIN(ViewMsg_Navigate_Params)
    608   // The page_id for this navigation, or -1 if it is a new navigation.  Back,
    609   // Forward, and Reload navigations should have a valid page_id.  If the load
    610   // succeeds, then this page_id will be reflected in the resultant
    611   // ViewHostMsg_FrameNavigate message.
    612   IPC_STRUCT_MEMBER(int32, page_id)
    613 
    614   // If page_id is -1, then pending_history_list_offset will also be -1.
    615   // Otherwise, it contains the offset into the history list corresponding to
    616   // the current navigation.
    617   IPC_STRUCT_MEMBER(int, pending_history_list_offset)
    618 
    619   // Informs the RenderView of where its current page contents reside in
    620   // session history and the total size of the session history list.
    621   IPC_STRUCT_MEMBER(int, current_history_list_offset)
    622   IPC_STRUCT_MEMBER(int, current_history_list_length)
    623 
    624   // Informs the RenderView the session history should be cleared. In that
    625   // case, the RenderView needs to notify the browser that the clearing was
    626   // succesful when the navigation commits.
    627   IPC_STRUCT_MEMBER(bool, should_clear_history_list)
    628 
    629   // The URL to load.
    630   IPC_STRUCT_MEMBER(GURL, url)
    631 
    632   // Base URL for use in WebKit's SubstituteData.
    633   // Is only used with data: URLs.
    634   IPC_STRUCT_MEMBER(GURL, base_url_for_data_url)
    635 
    636   // History URL for use in WebKit's SubstituteData.
    637   // Is only used with data: URLs.
    638   IPC_STRUCT_MEMBER(GURL, history_url_for_data_url)
    639 
    640   // The URL to send in the "Referer" header field. Can be empty if there is
    641   // no referrer.
    642   IPC_STRUCT_MEMBER(content::Referrer, referrer)
    643 
    644   // The type of transition.
    645   IPC_STRUCT_MEMBER(content::PageTransition, transition)
    646 
    647   // Opaque history state (received by ViewHostMsg_UpdateState).
    648   IPC_STRUCT_MEMBER(content::PageState, page_state)
    649 
    650   // Type of navigation.
    651   IPC_STRUCT_MEMBER(ViewMsg_Navigate_Type::Value, navigation_type)
    652 
    653   // The time the request was created
    654   IPC_STRUCT_MEMBER(base::Time, request_time)
    655 
    656   // Extra headers (separated by \n) to send during the request.
    657   IPC_STRUCT_MEMBER(std::string, extra_headers)
    658 
    659   // The following two members identify a previous request that has been
    660   // created before this navigation is being transferred to a new render view.
    661   // This serves the purpose of recycling the old request.
    662   // Unless this refers to a transferred navigation, these values are -1 and -1.
    663   IPC_STRUCT_MEMBER(int, transferred_request_child_id)
    664   IPC_STRUCT_MEMBER(int, transferred_request_request_id)
    665 
    666   // Whether or not we should allow the url to download.
    667   IPC_STRUCT_MEMBER(bool, allow_download)
    668 
    669   // Whether or not the user agent override string should be used.
    670   IPC_STRUCT_MEMBER(bool, is_overriding_user_agent)
    671 
    672   // True if this was a post request.
    673   IPC_STRUCT_MEMBER(bool, is_post)
    674 
    675   // If is_post is true, holds the post_data information from browser. Empty
    676   // otherwise.
    677   IPC_STRUCT_MEMBER(std::vector<unsigned char>, browser_initiated_post_data)
    678 
    679   // Whether or not this url should be allowed to access local file://
    680   // resources.
    681   IPC_STRUCT_MEMBER(bool, can_load_local_resources)
    682 
    683   // If not empty, which frame to navigate.
    684   IPC_STRUCT_MEMBER(std::string, frame_to_navigate)
    685 
    686   // The navigationStart time to expose to JS for this navigation.
    687   IPC_STRUCT_MEMBER(base::TimeTicks, browser_navigation_start)
    688 IPC_STRUCT_END()
    689 
    690 IPC_STRUCT_BEGIN(ViewMsg_New_Params)
    691   // Renderer-wide preferences.
    692   IPC_STRUCT_MEMBER(content::RendererPreferences, renderer_preferences)
    693 
    694   // Preferences for this view.
    695   IPC_STRUCT_MEMBER(WebPreferences, web_preferences)
    696 
    697   // The ID of the view to be created.
    698   IPC_STRUCT_MEMBER(int32, view_id)
    699 
    700   // The ID of the main frame hosted in the view.
    701   IPC_STRUCT_MEMBER(int32, main_frame_routing_id)
    702 
    703   // The ID of the rendering surface.
    704   IPC_STRUCT_MEMBER(int32, surface_id)
    705 
    706   // The session storage namespace ID this view should use.
    707   IPC_STRUCT_MEMBER(int64, session_storage_namespace_id)
    708 
    709   // The name of the frame associated with this view (or empty if none).
    710   IPC_STRUCT_MEMBER(string16, frame_name)
    711 
    712   // The route ID of the opener RenderView if we need to set one
    713   // (MSG_ROUTING_NONE otherwise).
    714   IPC_STRUCT_MEMBER(int, opener_route_id)
    715 
    716   // Whether the RenderView should initially be swapped out.
    717   IPC_STRUCT_MEMBER(bool, swapped_out)
    718 
    719   // The initial page ID to use for this view, which must be larger than any
    720   // existing navigation that might be loaded in the view.  Page IDs are unique
    721   // to a view and are only updated by the renderer after this initial value.
    722   IPC_STRUCT_MEMBER(int32, next_page_id)
    723 
    724   // The properties of the screen associated with the view.
    725   IPC_STRUCT_MEMBER(WebKit::WebScreenInfo, screen_info)
    726 
    727   // The accessibility mode of the renderer.
    728   IPC_STRUCT_MEMBER(AccessibilityMode, accessibility_mode)
    729 
    730   // Specifies whether partially swapping composited buffers is
    731   // allowed for a renderer. Partial swaps will be used if they are both
    732   // allowed and supported.
    733   IPC_STRUCT_MEMBER(bool, allow_partial_swap)
    734 IPC_STRUCT_END()
    735 
    736 IPC_STRUCT_BEGIN(ViewMsg_PostMessage_Params)
    737   // The serialized script value.
    738   IPC_STRUCT_MEMBER(string16, data)
    739 
    740   // When sent to the browser, this is the routing ID of the source frame in
    741   // the source process.  The browser replaces it with the routing ID of the
    742   // equivalent (swapped out) frame in the destination process.
    743   IPC_STRUCT_MEMBER(int, source_routing_id)
    744 
    745   // The origin of the source frame.
    746   IPC_STRUCT_MEMBER(string16, source_origin)
    747 
    748   // The origin for the message's target.
    749   IPC_STRUCT_MEMBER(string16, target_origin)
    750 IPC_STRUCT_END()
    751 
    752 // Messages sent from the browser to the renderer.
    753 
    754 // Tells the renderer to cancel an opened date/time dialog.
    755 IPC_MESSAGE_ROUTED0(ViewMsg_CancelDateTimeDialog)
    756 
    757 // Get all savable resource links from current webpage, include main
    758 // frame and sub-frame.
    759 IPC_MESSAGE_ROUTED1(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
    760                     GURL /* url of page which is needed to save */)
    761 
    762 // Get html data by serializing all frames of current page with lists
    763 // which contain all resource links that have local copy.
    764 IPC_MESSAGE_ROUTED3(ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
    765                     std::vector<GURL> /* urls that have local copy */,
    766                     std::vector<base::FilePath> /* paths of local copy */,
    767                     base::FilePath /* local directory path */)
    768 
    769 // Tells the render side that a ViewHostMsg_LockMouse message has been
    770 // processed. |succeeded| indicates whether the mouse has been successfully
    771 // locked or not.
    772 IPC_MESSAGE_ROUTED1(ViewMsg_LockMouse_ACK,
    773                     bool /* succeeded */)
    774 // Tells the render side that the mouse has been unlocked.
    775 IPC_MESSAGE_ROUTED0(ViewMsg_MouseLockLost)
    776 
    777 // Screen was rotated. Dispatched to the onorientationchange javascript API.
    778 IPC_MESSAGE_ROUTED1(ViewMsg_OrientationChangeEvent,
    779                     int /* orientation */)
    780 
    781 // Sent by the browser when the parameters for vsync alignment have changed.
    782 IPC_MESSAGE_ROUTED2(ViewMsg_UpdateVSyncParameters,
    783                     base::TimeTicks /* timebase */,
    784                     base::TimeDelta /* interval */)
    785 
    786 // Set the top-level frame to the provided name.
    787 IPC_MESSAGE_ROUTED1(ViewMsg_SetName,
    788                     std::string /* frame_name */)
    789 
    790 // Sent to the RenderView when a new tab is swapped into an existing
    791 // tab and the histories need to be merged. The existing tab has a history of
    792 // |merged_history_length| which precedes the history of the new tab. All
    793 // page_ids >= |minimum_page_id| in the new tab are appended to the history.
    794 //
    795 // For example, suppose the history of page_ids in the new tab's RenderView
    796 // is [4 7 8]. This is merged into an existing tab with 3 history items, and
    797 // all pages in the new tab with page_id >= 7 are to be preserved.
    798 // The resulting page history is [-1 -1 -1 7 8].
    799 IPC_MESSAGE_ROUTED2(ViewMsg_SetHistoryLengthAndPrune,
    800                     int, /* merge_history_length */
    801                     int32 /* minimum_page_id */)
    802 
    803 // Tells the renderer to create a new view.
    804 // This message is slightly different, the view it takes (via
    805 // ViewMsg_New_Params) is the view to create, the message itself is sent as a
    806 // non-view control message.
    807 IPC_MESSAGE_CONTROL1(ViewMsg_New,
    808                      ViewMsg_New_Params)
    809 
    810 // Reply in response to ViewHostMsg_ShowView or ViewHostMsg_ShowWidget.
    811 // similar to the new command, but used when the renderer created a view
    812 // first, and we need to update it.
    813 IPC_MESSAGE_ROUTED0(ViewMsg_CreatingNew_ACK)
    814 
    815 // Sends updated preferences to the renderer.
    816 IPC_MESSAGE_ROUTED1(ViewMsg_SetRendererPrefs,
    817                     content::RendererPreferences)
    818 
    819 // This passes a set of webkit preferences down to the renderer.
    820 IPC_MESSAGE_ROUTED1(ViewMsg_UpdateWebPreferences,
    821                     WebPreferences)
    822 
    823 // Informs the renderer that the timezone has changed.
    824 IPC_MESSAGE_ROUTED0(ViewMsg_TimezoneChange)
    825 
    826 // Tells the render view to close.
    827 IPC_MESSAGE_ROUTED0(ViewMsg_Close)
    828 
    829 IPC_STRUCT_BEGIN(ViewMsg_Resize_Params)
    830   IPC_STRUCT_MEMBER(WebKit::WebScreenInfo, screen_info)
    831   IPC_STRUCT_MEMBER(gfx::Size, new_size)
    832   IPC_STRUCT_MEMBER(gfx::Size, physical_backing_size)
    833   IPC_STRUCT_MEMBER(float, overdraw_bottom_height)
    834   IPC_STRUCT_MEMBER(gfx::Rect, resizer_rect)
    835   IPC_STRUCT_MEMBER(bool, is_fullscreen)
    836 IPC_STRUCT_END()
    837 
    838 // Tells the render view to change its size.  A ViewHostMsg_UpdateRect message
    839 // is generated in response provided new_size is not empty and not equal to
    840 // the view's current size.  The generated ViewHostMsg_UpdateRect message will
    841 // have the IS_RESIZE_ACK flag set. It also receives the resizer rect so that
    842 // we don't have to fetch it every time WebKit asks for it.
    843 IPC_MESSAGE_ROUTED1(ViewMsg_Resize,
    844                     ViewMsg_Resize_Params /* params */)
    845 
    846 // Tells the render view that the resize rect has changed.
    847 IPC_MESSAGE_ROUTED1(ViewMsg_ChangeResizeRect,
    848                     gfx::Rect /* resizer_rect */)
    849 
    850 // Sent to inform the view that it was hidden.  This allows it to reduce its
    851 // resource utilization.
    852 IPC_MESSAGE_ROUTED0(ViewMsg_WasHidden)
    853 
    854 // Tells the render view that it is no longer hidden (see WasHidden), and the
    855 // render view is expected to respond with a full repaint if needs_repainting
    856 // is true.  In that case, the generated ViewHostMsg_UpdateRect message will
    857 // have the IS_RESTORE_ACK flag set.  If needs_repainting is false, then this
    858 // message does not trigger a message in response.
    859 IPC_MESSAGE_ROUTED1(ViewMsg_WasShown,
    860                     bool /* needs_repainting */)
    861 
    862 // Sent to inform the view that it was swapped out.  This allows the process to
    863 // exit if no other views are using it.
    864 IPC_MESSAGE_ROUTED0(ViewMsg_WasSwappedOut)
    865 
    866 // Sent to render the view into the supplied transport DIB, resize
    867 // the web widget to match the |page_size|, scale it by the
    868 // appropriate scale to make it fit the |desired_size|, and return
    869 // it.  In response to this message, the host generates a
    870 // ViewHostMsg_PaintAtSize_ACK message.  Note that the DIB *must* be
    871 // the right size to receive an RGBA image at the |desired_size|.
    872 // |tag| is sent along with ViewHostMsg_PaintAtSize_ACK unmodified to
    873 // identify the PaintAtSize message the ACK belongs to.
    874 IPC_MESSAGE_ROUTED4(ViewMsg_PaintAtSize,
    875                     TransportDIB::Handle /* dib_handle */,
    876                     int /* tag */,
    877                     gfx::Size /* page_size */,
    878                     gfx::Size /* desired_size */)
    879 
    880 // Tells the render view that a ViewHostMsg_UpdateRect message was processed.
    881 // This signals the render view that it can send another UpdateRect message.
    882 IPC_MESSAGE_ROUTED0(ViewMsg_UpdateRect_ACK)
    883 
    884 // Tells the render view that a SwapBuffers was completed. Typically,
    885 // SwapBuffers requests go from renderer -> GPU process -> browser. Most
    886 // platforms still use the GfxCxt3D Echo for receiving the SwapBuffers Ack.
    887 // Using Echo routes the ack from browser -> GPU process -> renderer, while this
    888 // Ack goes directly from browser -> renderer. This is not used for the threaded
    889 // compositor path.
    890 IPC_MESSAGE_ROUTED0(ViewMsg_SwapBuffers_ACK)
    891 
    892 // Tells the render widget that a smooth scroll completed.
    893 IPC_MESSAGE_ROUTED0(ViewMsg_SmoothScrollCompleted)
    894 
    895 // Tells the renderer to focus the first (last if reverse is true) focusable
    896 // node.
    897 IPC_MESSAGE_ROUTED1(ViewMsg_SetInitialFocus,
    898                     bool /* reverse */)
    899 
    900 // Executes custom context menu action that was provided from WebKit.
    901 IPC_MESSAGE_ROUTED2(ViewMsg_CustomContextMenuAction,
    902                     content::CustomContextMenuContext /* custom_context */,
    903                     unsigned /* action */)
    904 
    905 // Sent in response to a ViewHostMsg_ContextMenu to let the renderer know that
    906 // the menu has been closed.
    907 IPC_MESSAGE_ROUTED1(ViewMsg_ContextMenuClosed,
    908                     content::CustomContextMenuContext /* custom_context */)
    909 
    910 // Sent to inform the renderer to invoke a context menu.
    911 // The parameter specifies the location in the render view's coordinates.
    912 IPC_MESSAGE_ROUTED1(ViewMsg_ShowContextMenu,
    913                     gfx::Point /* location where menu should be shown */)
    914 
    915 // Tells the renderer to perform the specified navigation, interrupting any
    916 // existing navigation.
    917 IPC_MESSAGE_ROUTED1(ViewMsg_Navigate, ViewMsg_Navigate_Params)
    918 
    919 IPC_MESSAGE_ROUTED0(ViewMsg_Stop)
    920 
    921 // Tells the renderer to reload the current focused frame
    922 IPC_MESSAGE_ROUTED0(ViewMsg_ReloadFrame)
    923 
    924 // Sent when the user wants to search for a word on the page (find in page).
    925 IPC_MESSAGE_ROUTED3(ViewMsg_Find,
    926                     int /* request_id */,
    927                     string16 /* search_text */,
    928                     WebKit::WebFindOptions)
    929 
    930 // This message notifies the renderer that the user has closed the FindInPage
    931 // window (and what action to take regarding the selection).
    932 IPC_MESSAGE_ROUTED1(ViewMsg_StopFinding,
    933                     content::StopFindAction /* action */)
    934 
    935 // Informs the renderer about various statistics the browser has (e.g.
    936 // latency) regarding the frames that have been displayed.
    937 IPC_MESSAGE_ROUTED1(ViewMsg_SetBrowserRenderingStats,
    938                     content::BrowserRenderingStats /* stats */)
    939 
    940 // Replaces a date time input field.
    941 IPC_MESSAGE_ROUTED1(ViewMsg_ReplaceDateTime,
    942                     ViewHostMsg_DateTimeDialogValue_Params /* value */)
    943 
    944 // Copies the image at location x, y to the clipboard (if there indeed is an
    945 // image at that location).
    946 IPC_MESSAGE_ROUTED2(ViewMsg_CopyImageAt,
    947                     int /* x */,
    948                     int /* y */)
    949 
    950 // Tells the renderer to perform the given action on the media player
    951 // located at the given point.
    952 IPC_MESSAGE_ROUTED2(ViewMsg_MediaPlayerActionAt,
    953                     gfx::Point, /* location */
    954                     WebKit::WebMediaPlayerAction)
    955 
    956 // Tells the renderer to perform the given action on the plugin located at
    957 // the given point.
    958 IPC_MESSAGE_ROUTED2(ViewMsg_PluginActionAt,
    959                     gfx::Point, /* location */
    960                     WebKit::WebPluginAction)
    961 
    962 // Request for the renderer to evaluate an xpath to a frame and execute a
    963 // javascript: url in that frame's context. The message is completely
    964 // asynchronous and no corresponding response message is sent back.
    965 //
    966 // frame_xpath contains the modified xpath notation to identify an inner
    967 // subframe (starting from the root frame). It is a concatenation of
    968 // number of smaller xpaths delimited by '\n'. Each chunk in the string can
    969 // be evaluated to a frame in its parent-frame's context.
    970 //
    971 // Example: /html/body/iframe/\n/html/body/div/iframe/\n/frameset/frame[0]
    972 // can be broken into 3 xpaths
    973 // /html/body/iframe evaluates to an iframe within the root frame
    974 // /html/body/div/iframe evaluates to an iframe within the level-1 iframe
    975 // /frameset/frame[0] evaluates to first frame within the level-2 iframe
    976 //
    977 // jscript_url is the string containing the javascript: url to be executed
    978 // in the target frame's context. The string should start with "javascript:"
    979 // and continue with a valid JS text.
    980 //
    981 // If the fourth parameter is true the result is sent back to the renderer
    982 // using the message ViewHostMsg_ScriptEvalResponse.
    983 // ViewHostMsg_ScriptEvalResponse is passed the ID parameter so that the
    984 // client can uniquely identify the request.
    985 IPC_MESSAGE_ROUTED4(ViewMsg_ScriptEvalRequest,
    986                     string16,  /* frame_xpath */
    987                     string16,  /* jscript_url */
    988                     int,  /* ID */
    989                     bool  /* If true, result is sent back. */)
    990 
    991 // Posts a message from a frame in another process to the current renderer.
    992 IPC_MESSAGE_ROUTED1(ViewMsg_PostMessageEvent,
    993                     ViewMsg_PostMessage_Params)
    994 
    995 // Requests that the RenderView's main frame sets its opener to null.
    996 IPC_MESSAGE_ROUTED0(ViewMsg_DisownOpener)
    997 
    998 // Request for the renderer to evaluate an xpath to a frame and insert css
    999 // into that frame's document. See ViewMsg_ScriptEvalRequest for details on
   1000 // allowed xpath expressions.
   1001 IPC_MESSAGE_ROUTED2(ViewMsg_CSSInsertRequest,
   1002                     string16,  /* frame_xpath */
   1003                     std::string  /* css string */)
   1004 
   1005 // Change the zoom level for the current main frame.  If the level actually
   1006 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
   1007 // telling it what url got zoomed and what its current zoom level is.
   1008 IPC_MESSAGE_ROUTED1(ViewMsg_Zoom,
   1009                     content::PageZoom /* function */)
   1010 
   1011 // Set the zoom level for the current main frame.  If the level actually
   1012 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
   1013 // telling it what url got zoomed and what its current zoom level is.
   1014 IPC_MESSAGE_ROUTED1(ViewMsg_SetZoomLevel,
   1015                     double /* zoom_level */)
   1016 
   1017 // Zooms the page by the factor defined in the renderer.
   1018 IPC_MESSAGE_ROUTED3(ViewMsg_ZoomFactor,
   1019                     content::PageZoom,
   1020                     int /* zoom center_x */,
   1021                     int /* zoom center_y */)
   1022 
   1023 // Set the zoom level for a particular url that the renderer is in the
   1024 // process of loading.  This will be stored, to be used if the load commits
   1025 // and ignored otherwise.
   1026 IPC_MESSAGE_ROUTED2(ViewMsg_SetZoomLevelForLoadingURL,
   1027                     GURL /* url */,
   1028                     double /* zoom_level */)
   1029 
   1030 // Set the zoom level for a particular url, so all render views
   1031 // displaying this url can update their zoom levels to match.
   1032 // If scheme is empty, then only host is used for matching.
   1033 IPC_MESSAGE_CONTROL3(ViewMsg_SetZoomLevelForCurrentURL,
   1034                      std::string /* scheme */,
   1035                      std::string /* host */,
   1036                      double /* zoom_level */)
   1037 
   1038 // Change encoding of page in the renderer.
   1039 IPC_MESSAGE_ROUTED1(ViewMsg_SetPageEncoding,
   1040                     std::string /*new encoding name*/)
   1041 
   1042 // Reset encoding of page in the renderer back to default.
   1043 IPC_MESSAGE_ROUTED0(ViewMsg_ResetPageEncodingToDefault)
   1044 
   1045 // Used to tell a render view whether it should expose various bindings
   1046 // that allow JS content extended privileges.  See BindingsPolicy for valid
   1047 // flag values.
   1048 IPC_MESSAGE_ROUTED1(ViewMsg_AllowBindings,
   1049                     int /* enabled_bindings_flags */)
   1050 
   1051 // Tell the renderer to add a property to the WebUI binding object.  This
   1052 // only works if we allowed WebUI bindings.
   1053 IPC_MESSAGE_ROUTED2(ViewMsg_SetWebUIProperty,
   1054                     std::string /* property_name */,
   1055                     std::string /* property_value_json */)
   1056 
   1057 // This message starts/stop monitoring the input method status of the focused
   1058 // edit control of a renderer process.
   1059 // Parameters
   1060 // * is_active (bool)
   1061 //   Indicates if an input method is active in the browser process.
   1062 //   The possible actions when a renderer process receives this message are
   1063 //   listed below:
   1064 //     Value Action
   1065 //     true  Start sending IPC message ViewHostMsg_ImeUpdateTextInputState
   1066 //           to notify the input method status of the focused edit control.
   1067 //     false Stop sending IPC message ViewHostMsg_ImeUpdateTextInputState.
   1068 IPC_MESSAGE_ROUTED1(ViewMsg_SetInputMethodActive,
   1069                     bool /* is_active */)
   1070 
   1071 // This message sends a string being composed with an input method.
   1072 IPC_MESSAGE_ROUTED4(
   1073     ViewMsg_ImeSetComposition,
   1074     string16, /* text */
   1075     std::vector<WebKit::WebCompositionUnderline>, /* underlines */
   1076     int, /* selectiont_start */
   1077     int /* selection_end */)
   1078 
   1079 // This message confirms an ongoing composition.
   1080 IPC_MESSAGE_ROUTED3(ViewMsg_ImeConfirmComposition,
   1081                     string16 /* text */,
   1082                     ui::Range /* replacement_range */,
   1083                     bool /* keep_selection */)
   1084 
   1085 // Sets the text composition to be between the given start and end offsets
   1086 // in the currently focused editable field.
   1087 IPC_MESSAGE_ROUTED3(ViewMsg_SetCompositionFromExistingText,
   1088     int /* start */,
   1089     int /* end */,
   1090     std::vector<WebKit::WebCompositionUnderline> /* underlines */)
   1091 
   1092 // Selects between the given start and end offsets in the currently focused
   1093 // editable field.
   1094 IPC_MESSAGE_ROUTED2(ViewMsg_SetEditableSelectionOffsets,
   1095                     int /* start */,
   1096                     int /* end */)
   1097 
   1098 // Deletes the current selection plus the specified number of characters before
   1099 // and after the selection or caret.
   1100 IPC_MESSAGE_ROUTED2(ViewMsg_ExtendSelectionAndDelete,
   1101                     int /* before */,
   1102                     int /* after */)
   1103 
   1104 // Used to notify the render-view that we have received a target URL. Used
   1105 // to prevent target URLs spamming the browser.
   1106 IPC_MESSAGE_ROUTED0(ViewMsg_UpdateTargetURL_ACK)
   1107 
   1108 
   1109 // Sets the alternate error page URL (link doctor) for the renderer process.
   1110 IPC_MESSAGE_ROUTED1(ViewMsg_SetAltErrorPageURL,
   1111                     GURL)
   1112 
   1113 // Notifies the color chooser client that the user selected a color.
   1114 IPC_MESSAGE_ROUTED2(ViewMsg_DidChooseColorResponse, unsigned, SkColor)
   1115 
   1116 // Notifies the color chooser client that the color chooser has ended.
   1117 IPC_MESSAGE_ROUTED1(ViewMsg_DidEndColorChooser, unsigned)
   1118 
   1119 IPC_MESSAGE_ROUTED1(ViewMsg_RunFileChooserResponse,
   1120                     std::vector<ui::SelectedFileInfo>)
   1121 
   1122 // Provides the results of directory enumeration.
   1123 IPC_MESSAGE_ROUTED2(ViewMsg_EnumerateDirectoryResponse,
   1124                     int /* request_id */,
   1125                     std::vector<base::FilePath> /* files_in_directory */)
   1126 
   1127 // When a renderer sends a ViewHostMsg_Focus to the browser process,
   1128 // the browser has the option of sending a ViewMsg_CantFocus back to
   1129 // the renderer.
   1130 IPC_MESSAGE_ROUTED0(ViewMsg_CantFocus)
   1131 
   1132 // Instructs the renderer to invoke the frame's shouldClose method, which
   1133 // runs the onbeforeunload event handler.  Expects the result to be returned
   1134 // via ViewHostMsg_ShouldClose.
   1135 IPC_MESSAGE_ROUTED0(ViewMsg_ShouldClose)
   1136 
   1137 // Instructs the renderer to swap out for a cross-site transition, including
   1138 // running the unload event handler. Expects a SwapOut_ACK message when
   1139 // finished.
   1140 IPC_MESSAGE_ROUTED0(ViewMsg_SwapOut)
   1141 
   1142 // Instructs the renderer to close the current page, including running the
   1143 // onunload event handler.
   1144 //
   1145 // Expects a ClosePage_ACK message when finished.
   1146 IPC_MESSAGE_ROUTED0(ViewMsg_ClosePage)
   1147 
   1148 // Notifies the renderer about ui theme changes
   1149 IPC_MESSAGE_ROUTED0(ViewMsg_ThemeChanged)
   1150 
   1151 // Notifies the renderer that a paint is to be generated for the rectangle
   1152 // passed in.
   1153 IPC_MESSAGE_ROUTED1(ViewMsg_Repaint,
   1154                     gfx::Size /* The view size to be repainted */)
   1155 
   1156 // Notification that a move or resize renderer's containing window has
   1157 // started.
   1158 IPC_MESSAGE_ROUTED0(ViewMsg_MoveOrResizeStarted)
   1159 
   1160 IPC_MESSAGE_ROUTED2(ViewMsg_UpdateScreenRects,
   1161                     gfx::Rect /* view_screen_rect */,
   1162                     gfx::Rect /* window_screen_rect */)
   1163 
   1164 // Reply to ViewHostMsg_RequestMove, ViewHostMsg_ShowView, and
   1165 // ViewHostMsg_ShowWidget to inform the renderer that the browser has
   1166 // processed the move.  The browser may have ignored the move, but it finished
   1167 // processing.  This is used because the renderer keeps a temporary cache of
   1168 // the widget position while these asynchronous operations are in progress.
   1169 IPC_MESSAGE_ROUTED0(ViewMsg_Move_ACK)
   1170 
   1171 // Used to instruct the RenderView to send back updates to the preferred size.
   1172 IPC_MESSAGE_ROUTED0(ViewMsg_EnablePreferredSizeChangedMode)
   1173 
   1174 // Used to instruct the RenderView to automatically resize and send back
   1175 // updates for the new size.
   1176 IPC_MESSAGE_ROUTED2(ViewMsg_EnableAutoResize,
   1177                     gfx::Size /* min_size */,
   1178                     gfx::Size /* max_size */)
   1179 
   1180 // Used to instruct the RenderView to disalbe automatically resize.
   1181 IPC_MESSAGE_ROUTED1(ViewMsg_DisableAutoResize,
   1182                     gfx::Size /* new_size */)
   1183 
   1184 // Changes the text direction of the currently selected input field (if any).
   1185 IPC_MESSAGE_ROUTED1(ViewMsg_SetTextDirection,
   1186                     WebKit::WebTextDirection /* direction */)
   1187 
   1188 // Tells the renderer to clear the focused node (if any).
   1189 IPC_MESSAGE_ROUTED0(ViewMsg_ClearFocusedNode)
   1190 
   1191 // Make the RenderView transparent and render it onto a custom background. The
   1192 // background will be tiled in both directions if it is not large enough.
   1193 IPC_MESSAGE_ROUTED1(ViewMsg_SetBackground,
   1194                     SkBitmap /* background */)
   1195 
   1196 // Used to tell the renderer not to add scrollbars with height and
   1197 // width below a threshold.
   1198 IPC_MESSAGE_ROUTED1(ViewMsg_DisableScrollbarsForSmallWindows,
   1199                     gfx::Size /* disable_scrollbar_size_limit */)
   1200 
   1201 // Activate/deactivate the RenderView (i.e., set its controls' tint
   1202 // accordingly, etc.).
   1203 IPC_MESSAGE_ROUTED1(ViewMsg_SetActive,
   1204                     bool /* active */)
   1205 
   1206 // Response message to ViewHostMsg_CreateShared/DedicatedWorker.
   1207 // Sent when the worker has started.
   1208 IPC_MESSAGE_ROUTED0(ViewMsg_WorkerCreated)
   1209 
   1210 // The response to ViewHostMsg_AsyncOpenPepperFile.
   1211 IPC_MESSAGE_ROUTED3(ViewMsg_AsyncOpenPepperFile_ACK,
   1212                     base::PlatformFileError /* error_code */,
   1213                     IPC::PlatformFileForTransit /* file descriptor */,
   1214                     int /* message_id */)
   1215 
   1216 // Tells the renderer that the network state has changed and that
   1217 // window.navigator.onLine should be updated for all WebViews.
   1218 IPC_MESSAGE_CONTROL1(ViewMsg_NetworkStateChanged,
   1219                      bool /* online */)
   1220 
   1221 // Reply to ViewHostMsg_OpenChannelToPpapiBroker
   1222 // Tells the renderer that the channel to the broker has been created.
   1223 IPC_MESSAGE_ROUTED2(ViewMsg_PpapiBrokerChannelCreated,
   1224                     base::ProcessId /* broker_pid */,
   1225                     IPC::ChannelHandle /* handle */)
   1226 
   1227 // Reply to ViewHostMsg_RequestPpapiBrokerPermission.
   1228 // Tells the renderer whether permission to access to PPAPI broker was granted
   1229 // or not.
   1230 IPC_MESSAGE_ROUTED1(ViewMsg_PpapiBrokerPermissionResult,
   1231                     bool /* result */)
   1232 
   1233 // Tells the renderer to empty its plugin list cache, optional reloading
   1234 // pages containing plugins.
   1235 IPC_MESSAGE_CONTROL1(ViewMsg_PurgePluginListCache,
   1236                      bool /* reload_pages */)
   1237 
   1238 // Sent to the renderer when a popup window should no longer count against
   1239 // the current popup count (either because it's not a popup or because it was
   1240 // a generated by a user action).
   1241 IPC_MESSAGE_ROUTED0(ViewMsg_DisassociateFromPopupCount)
   1242 
   1243 // Used to instruct the RenderView to go into "view source" mode.
   1244 IPC_MESSAGE_ROUTED0(ViewMsg_EnableViewSourceMode)
   1245 
   1246 // Instructs the renderer to save the current page to MHTML.
   1247 IPC_MESSAGE_ROUTED2(ViewMsg_SavePageAsMHTML,
   1248                     int /* job_id */,
   1249                     IPC::PlatformFileForTransit /* file handle */)
   1250 
   1251 // Temporary message to diagnose an unexpected condition in WebContentsImpl.
   1252 IPC_MESSAGE_CONTROL1(ViewMsg_TempCrashWithData,
   1253                      GURL /* data */)
   1254 
   1255 // Change the accessibility mode in the renderer process.
   1256 IPC_MESSAGE_ROUTED1(ViewMsg_SetAccessibilityMode,
   1257                     AccessibilityMode)
   1258 
   1259 // An acknowledge to ViewHostMsg_MultipleTargetsTouched to notify the renderer
   1260 // process to release the magnified image.
   1261 IPC_MESSAGE_ROUTED1(ViewMsg_ReleaseDisambiguationPopupDIB,
   1262                     TransportDIB::Handle /* DIB handle */)
   1263 
   1264 // Notifies the renderer that a snapshot has been retrieved.
   1265 IPC_MESSAGE_ROUTED3(ViewMsg_WindowSnapshotCompleted,
   1266                     int /* snapshot_id */,
   1267                     gfx::Size /* size */,
   1268                     std::vector<unsigned char> /* png */)
   1269 
   1270 // Tells the renderer to suspend/resume the webkit timers.
   1271 IPC_MESSAGE_CONTROL1(ViewMsg_SetWebKitSharedTimersSuspended,
   1272                      bool /* suspend */)
   1273 
   1274 #if defined(OS_ANDROID)
   1275 // Sent when the browser wants the bounding boxes of the current find matches.
   1276 //
   1277 // If match rects are already cached on the browser side, |current_version|
   1278 // should be the version number from the ViewHostMsg_FindMatchRects_Reply
   1279 // they came in, so the renderer can tell if it needs to send updated rects.
   1280 // Otherwise just pass -1 to always receive the list of rects.
   1281 //
   1282 // There must be an active search string (it is probably most useful to call
   1283 // this immediately after a ViewHostMsg_Find_Reply message arrives with
   1284 // final_update set to true).
   1285 IPC_MESSAGE_ROUTED1(ViewMsg_FindMatchRects,
   1286                     int /* current_version */)
   1287 
   1288 // External popup menus.
   1289 IPC_MESSAGE_ROUTED2(ViewMsg_SelectPopupMenuItems,
   1290                     bool /* user canceled the popup */,
   1291                     std::vector<int> /* selected indices */)
   1292 
   1293 // Tells the renderer to try to revert to the zoom level we were at before
   1294 // ViewMsg_ScrollFocusedEditableNodeIntoView was called.
   1295 IPC_MESSAGE_ROUTED0(ViewMsg_UndoScrollFocusedEditableNodeIntoView)
   1296 
   1297 // This message relays the beginning or end of a batch event in the IME.
   1298 IPC_MESSAGE_ROUTED1(ViewMsg_ImeBatchStateChanged,
   1299     bool /* is_begin */)
   1300 
   1301 // Notifies the renderer whether hiding/showing the top controls is enabled
   1302 // and whether or not to animate to the proper state.
   1303 IPC_MESSAGE_ROUTED3(ViewMsg_UpdateTopControlsState,
   1304                     bool /* enable_hiding */,
   1305                     bool /* enable_showing */,
   1306                     bool /* animate */)
   1307 
   1308 IPC_MESSAGE_ROUTED0(ViewMsg_ShowImeIfNeeded)
   1309 
   1310 // Sent by the browser when the renderer should generate a new frame.
   1311 IPC_MESSAGE_ROUTED1(ViewMsg_BeginFrame,
   1312                     cc::BeginFrameArgs /* args */)
   1313 
   1314 // Sent by the browser when an IME update that requires acknowledgement has been
   1315 // processed on the browser side.
   1316 IPC_MESSAGE_ROUTED0(ViewMsg_ImeEventAck)
   1317 
   1318 // Sent by the browser when we should pause video playback.
   1319 IPC_MESSAGE_ROUTED0(ViewMsg_PauseVideo);
   1320 
   1321 #elif defined(OS_MACOSX)
   1322 // Let the RenderView know its window has changed visibility.
   1323 IPC_MESSAGE_ROUTED1(ViewMsg_SetWindowVisibility,
   1324                     bool /* visibile */)
   1325 
   1326 // Let the RenderView know its window's frame has changed.
   1327 IPC_MESSAGE_ROUTED2(ViewMsg_WindowFrameChanged,
   1328                     gfx::Rect /* window frame */,
   1329                     gfx::Rect /* content view frame */)
   1330 
   1331 // Message sent from the browser to the renderer when the user starts or stops
   1332 // resizing the view.
   1333 IPC_MESSAGE_ROUTED1(ViewMsg_SetInLiveResize,
   1334                     bool /* enable */)
   1335 
   1336 // Tell the renderer that plugin IME has completed.
   1337 IPC_MESSAGE_ROUTED2(ViewMsg_PluginImeCompositionCompleted,
   1338                     string16 /* text */,
   1339                     int /* plugin_id */)
   1340 
   1341 // External popup menus.
   1342 IPC_MESSAGE_ROUTED1(ViewMsg_SelectPopupMenuItem,
   1343                     int /* selected index, -1 means no selection */)
   1344 #endif
   1345 
   1346 // Sent by the browser as a reply to ViewHostMsg_SwapCompositorFrame.
   1347 IPC_MESSAGE_ROUTED2(ViewMsg_SwapCompositorFrameAck,
   1348                     uint32 /* output_surface_id */,
   1349                     cc::CompositorFrameAck /* ack */)
   1350 
   1351 // Sent by the browser to ask the renderer for a snapshot of the current view.
   1352 IPC_MESSAGE_ROUTED1(ViewMsg_Snapshot,
   1353                     gfx::Rect /* src_subrect */)
   1354 
   1355 // -----------------------------------------------------------------------------
   1356 // Messages sent from the renderer to the browser.
   1357 
   1358 // Sent by the renderer when it is creating a new window.  The browser creates
   1359 // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
   1360 // MSG_ROUTING_NONE, the view couldn't be created.
   1361 IPC_SYNC_MESSAGE_CONTROL1_4(ViewHostMsg_CreateWindow,
   1362                             ViewHostMsg_CreateWindow_Params,
   1363                             int /* route_id */,
   1364                             int /* main_frame_route_id */,
   1365                             int32 /* surface_id */,
   1366                             int64 /* cloned_session_storage_namespace_id */)
   1367 
   1368 // Similar to ViewHostMsg_CreateWindow, except used for sub-widgets, like
   1369 // <select> dropdowns.  This message is sent to the WebContentsImpl that
   1370 // contains the widget being created.
   1371 IPC_SYNC_MESSAGE_CONTROL2_2(ViewHostMsg_CreateWidget,
   1372                             int /* opener_id */,
   1373                             WebKit::WebPopupType /* popup type */,
   1374                             int /* route_id */,
   1375                             int32 /* surface_id */)
   1376 
   1377 // Similar to ViewHostMsg_CreateWidget except the widget is a full screen
   1378 // window.
   1379 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_CreateFullscreenWidget,
   1380                             int /* opener_id */,
   1381                             int /* route_id */,
   1382                             int32 /* surface_id */)
   1383 
   1384 // Asks the browser for a unique routing ID.
   1385 IPC_SYNC_MESSAGE_CONTROL0_1(ViewHostMsg_GenerateRoutingID,
   1386                             int /* routing_id */)
   1387 
   1388 // Asks the browser for the default audio hardware configuration.
   1389 IPC_SYNC_MESSAGE_CONTROL0_2(ViewHostMsg_GetAudioHardwareConfig,
   1390                             media::AudioParameters /* input parameters */,
   1391                             media::AudioParameters /* output parameters */)
   1392 
   1393 // Asks the browser for CPU usage of the renderer process in percents.
   1394 IPC_SYNC_MESSAGE_CONTROL0_1(ViewHostMsg_GetCPUUsage,
   1395                             int /* CPU usage in percents */)
   1396 
   1397 // Asks the browser for the user's monitor profile.
   1398 IPC_SYNC_MESSAGE_CONTROL0_1(ViewHostMsg_GetMonitorColorProfile,
   1399                             std::vector<char> /* profile */)
   1400 
   1401 // Asks the browser for the renderer process memory size stats.
   1402 IPC_SYNC_MESSAGE_CONTROL0_2(ViewHostMsg_GetProcessMemorySizes,
   1403                             size_t /* private_bytes */,
   1404                             size_t /* shared_bytes */)
   1405 
   1406 // These three messages are sent to the parent RenderViewHost to display the
   1407 // page/widget that was created by
   1408 // CreateWindow/CreateWidget/CreateFullscreenWidget. routing_id
   1409 // refers to the id that was returned from the Create message above.
   1410 // The initial_position parameter is a rectangle in screen coordinates.
   1411 //
   1412 // FUTURE: there will probably be flags here to control if the result is
   1413 // in a new window.
   1414 IPC_MESSAGE_ROUTED4(ViewHostMsg_ShowView,
   1415                     int /* route_id */,
   1416                     WindowOpenDisposition /* disposition */,
   1417                     gfx::Rect /* initial_pos */,
   1418                     bool /* opened_by_user_gesture */)
   1419 
   1420 IPC_MESSAGE_ROUTED2(ViewHostMsg_ShowWidget,
   1421                     int /* route_id */,
   1422                     gfx::Rect /* initial_pos */)
   1423 
   1424 // Message to show a full screen widget.
   1425 IPC_MESSAGE_ROUTED1(ViewHostMsg_ShowFullscreenWidget,
   1426                     int /* route_id */)
   1427 
   1428 // This message is sent after ViewHostMsg_ShowView to cause the RenderView
   1429 // to run in a modal fashion until it is closed.
   1430 IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_RunModal,
   1431                            int /* opener_id */)
   1432 
   1433 // Indicates the renderer is ready in response to a ViewMsg_New or
   1434 // a ViewMsg_CreatingNew_ACK.
   1435 IPC_MESSAGE_ROUTED0(ViewHostMsg_RenderViewReady)
   1436 
   1437 // Indicates the renderer process is gone.  This actually is sent by the
   1438 // browser process to itself, but keeps the interface cleaner.
   1439 IPC_MESSAGE_ROUTED2(ViewHostMsg_RenderProcessGone,
   1440                     int, /* this really is base::TerminationStatus */
   1441                     int /* exit_code */)
   1442 
   1443 // Sent by the renderer process to request that the browser close the view.
   1444 // This corresponds to the window.close() API, and the browser may ignore
   1445 // this message.  Otherwise, the browser will generates a ViewMsg_Close
   1446 // message to close the view.
   1447 IPC_MESSAGE_ROUTED0(ViewHostMsg_Close)
   1448 
   1449 // Send in response to a ViewMsg_UpdateScreenRects so that the renderer can
   1450 // throttle these messages.
   1451 IPC_MESSAGE_ROUTED0(ViewHostMsg_UpdateScreenRects_ACK)
   1452 
   1453 // Sent by the renderer process to request that the browser move the view.
   1454 // This corresponds to the window.resizeTo() and window.moveTo() APIs, and
   1455 // the browser may ignore this message.
   1456 IPC_MESSAGE_ROUTED1(ViewHostMsg_RequestMove,
   1457                     gfx::Rect /* position */)
   1458 
   1459 // Sent by the renderer process to notify the browser that the web page has
   1460 // programmatically scrolled.
   1461 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidProgrammaticallyScroll,
   1462                     gfx::Vector2d /* scroll_point */)
   1463 
   1464 // Notifies the browser that a frame in the view has changed. This message
   1465 // has a lot of parameters and is packed/unpacked by functions defined in
   1466 // render_messages.h.
   1467 IPC_MESSAGE_ROUTED1(ViewHostMsg_FrameNavigate,
   1468                     ViewHostMsg_FrameNavigate_Params)
   1469 
   1470 // Used to tell the parent that the user right clicked on an area of the
   1471 // content area, and a context menu should be shown for it. The params
   1472 // object contains information about the node(s) that were selected when the
   1473 // user right clicked.
   1474 IPC_MESSAGE_ROUTED1(ViewHostMsg_ContextMenu, content::ContextMenuParams)
   1475 
   1476 // Message to show a popup menu using native cocoa controls (Mac only).
   1477 IPC_MESSAGE_ROUTED1(ViewHostMsg_ShowPopup,
   1478                     ViewHostMsg_ShowPopup_Params)
   1479 
   1480 // Response from ViewMsg_ScriptEvalRequest. The ID is the parameter supplied
   1481 // to ViewMsg_ScriptEvalRequest. The result has the value returned by the
   1482 // script as its only element, one of Null, Boolean, Integer, Real, Date, or
   1483 // String.
   1484 IPC_MESSAGE_ROUTED2(ViewHostMsg_ScriptEvalResponse,
   1485                     int  /* id */,
   1486                     base::ListValue  /* result */)
   1487 
   1488 // Result of string search in the page.
   1489 // Response to ViewMsg_Find with the results of the requested find-in-page
   1490 // search, the number of matches found and the selection rect (in screen
   1491 // coordinates) for the string found. If |final_update| is false, it signals
   1492 // that this is not the last Find_Reply message - more will be sent as the
   1493 // scoping effort continues.
   1494 IPC_MESSAGE_ROUTED5(ViewHostMsg_Find_Reply,
   1495                     int /* request_id */,
   1496                     int /* number of matches */,
   1497                     gfx::Rect /* selection_rect */,
   1498                     int /* active_match_ordinal */,
   1499                     bool /* final_update */)
   1500 
   1501 // Provides the result from running OnMsgShouldClose.  |proceed| matches the
   1502 // return value of the the frame's shouldClose method (which includes the
   1503 // onbeforeunload handler): true if the user decided to proceed with leaving
   1504 // the page.
   1505 IPC_MESSAGE_ROUTED3(ViewHostMsg_ShouldClose_ACK,
   1506                     bool /* proceed */,
   1507                     base::TimeTicks /* before_unload_start_time */,
   1508                     base::TimeTicks /* before_unload_end_time */)
   1509 
   1510 // Indicates that the current renderer has swapped out, after a SwapOut
   1511 // message.
   1512 IPC_MESSAGE_ROUTED0(ViewHostMsg_SwapOut_ACK)
   1513 
   1514 // Indicates that the current page has been closed, after a ClosePage
   1515 // message.
   1516 IPC_MESSAGE_ROUTED0(ViewHostMsg_ClosePage_ACK)
   1517 
   1518 // Notifies the browser that media has started/stopped playing.
   1519 IPC_MESSAGE_ROUTED4(ViewHostMsg_MediaNotification,
   1520                     int64 /* player_cookie, distinguishes instances */,
   1521                     bool /* has_video */,
   1522                     bool /* has_audio */,
   1523                     bool /* is_playing */)
   1524 
   1525 // Notifies the browser that we have session history information.
   1526 // page_id: unique ID that allows us to distinguish between history entries.
   1527 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateState,
   1528                     int32 /* page_id */,
   1529                     content::PageState /* state */)
   1530 
   1531 // Notifies the browser that a document has been loaded in a frame.
   1532 IPC_MESSAGE_ROUTED1(ViewHostMsg_DocumentLoadedInFrame,
   1533                     int64 /* frame_id */)
   1534 
   1535 // Notifies the browser that a frame finished loading.
   1536 IPC_MESSAGE_ROUTED3(ViewHostMsg_DidFinishLoad,
   1537                     int64 /* frame_id */,
   1538                     GURL /* validated_url */,
   1539                     bool /* is_main_frame */)
   1540 
   1541 // Changes the title for the page in the UI when the page is navigated or the
   1542 // title changes.
   1543 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateTitle,
   1544                     int32 /* page_id */,
   1545                     string16 /* title */,
   1546                     WebKit::WebTextDirection /* title direction */)
   1547 
   1548 // Change the encoding name of the page in UI when the page has detected
   1549 // proper encoding name.
   1550 IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateEncoding,
   1551                     std::string /* new encoding name */)
   1552 
   1553 // Notifies the browser that we want to show a destination url for a potential
   1554 // action (e.g. when the user is hovering over a link).
   1555 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateTargetURL,
   1556                     int32,
   1557                     GURL)
   1558 
   1559 // Sent when the renderer starts loading the page. This corresponds to
   1560 // WebKit's notion of the throbber starting. Note that sometimes you may get
   1561 // duplicates of these during a single load.
   1562 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidStartLoading)
   1563 
   1564 // Sent when the renderer is done loading a page. This corresponds to WebKit's
   1565 // notion of the throbber stopping.
   1566 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidStopLoading)
   1567 
   1568 // Sent when the renderer main frame has made progress loading.
   1569 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidChangeLoadProgress,
   1570                     double /* load_progress */)
   1571 
   1572 // Sent when the renderer main frame sets its opener to null, disowning it for
   1573 // the lifetime of the window.
   1574 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidDisownOpener)
   1575 
   1576 // Sent when the document element is available for the top-level frame.  This
   1577 // happens after the page starts loading, but before all resources are
   1578 // finished.
   1579 IPC_MESSAGE_ROUTED0(ViewHostMsg_DocumentAvailableInMainFrame)
   1580 
   1581 // Sent when after the onload handler has been invoked for the document
   1582 // in the top-level frame.
   1583 IPC_MESSAGE_ROUTED1(ViewHostMsg_DocumentOnLoadCompletedInMainFrame,
   1584                     int32 /* page_id */)
   1585 
   1586 // Sent when the renderer loads a resource from its memory cache.
   1587 // The security info is non empty if the resource was originally loaded over
   1588 // a secure connection.
   1589 // Note: May only be sent once per URL per frame per committed load.
   1590 IPC_MESSAGE_ROUTED5(ViewHostMsg_DidLoadResourceFromMemoryCache,
   1591                     GURL /* url */,
   1592                     std::string  /* security info */,
   1593                     std::string  /* http method */,
   1594                     std::string  /* mime type */,
   1595                     ResourceType::Type /* resource type */)
   1596 
   1597 // Sent when the renderer displays insecure content in a secure page.
   1598 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidDisplayInsecureContent)
   1599 
   1600 // Sent when the renderer runs insecure content in a secure origin.
   1601 IPC_MESSAGE_ROUTED2(ViewHostMsg_DidRunInsecureContent,
   1602                     std::string  /* security_origin */,
   1603                     GURL         /* target URL */)
   1604 
   1605 // Sent when the renderer starts a provisional load for a frame.
   1606 IPC_MESSAGE_ROUTED4(ViewHostMsg_DidStartProvisionalLoadForFrame,
   1607                     int64 /* frame_id */,
   1608                     int64 /* parent_frame_id */,
   1609                     bool /* true if it is the main frame */,
   1610                     GURL /* url */)
   1611 
   1612 IPC_MESSAGE_ROUTED5(ViewHostMsg_DidFailLoadWithError,
   1613                     int64 /* frame_id */,
   1614                     GURL /* validated_url */,
   1615                     bool /* is_main_frame */,
   1616                     int /* error_code */,
   1617                     string16 /* error_description */)
   1618 
   1619 // Sent when the renderer fails a provisional load with an error.
   1620 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidFailProvisionalLoadWithError,
   1621                     ViewHostMsg_DidFailProvisionalLoadWithError_Params)
   1622 
   1623 // Tells the render view that a ViewHostMsg_PaintAtSize message was
   1624 // processed, and the DIB is ready for use. |tag| has the same value that
   1625 // the tag sent along with ViewMsg_PaintAtSize.
   1626 IPC_MESSAGE_ROUTED2(ViewHostMsg_PaintAtSize_ACK,
   1627                     int /* tag */,
   1628                     gfx::Size /* size */)
   1629 
   1630 // Sent to update part of the view.  In response to this message, the host
   1631 // generates a ViewMsg_UpdateRect_ACK message.
   1632 IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateRect,
   1633                     ViewHostMsg_UpdateRect_Params)
   1634 
   1635 // Sent to unblock the browser's UI thread if it is waiting on an UpdateRect,
   1636 // which may get delayed until the browser's UI unblocks.
   1637 IPC_MESSAGE_ROUTED0(ViewHostMsg_UpdateIsDelayed)
   1638 
   1639 // Sent by the renderer when accelerated compositing is enabled or disabled to
   1640 // notify the browser whether or not is should do painting.
   1641 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidActivateAcceleratedCompositing,
   1642                     bool /* true if the accelerated compositor is actve */)
   1643 
   1644 IPC_STRUCT_BEGIN(ViewHostMsg_BeginSmoothScroll_Params)
   1645   IPC_STRUCT_MEMBER(bool, scroll_down)
   1646   IPC_STRUCT_MEMBER(int, pixels_to_scroll)
   1647   IPC_STRUCT_MEMBER(int, mouse_event_x)
   1648   IPC_STRUCT_MEMBER(int, mouse_event_y)
   1649 IPC_STRUCT_END()
   1650 
   1651 IPC_MESSAGE_ROUTED1(ViewHostMsg_BeginSmoothScroll,
   1652                     ViewHostMsg_BeginSmoothScroll_Params /* params */)
   1653 
   1654 IPC_MESSAGE_ROUTED0(ViewHostMsg_Focus)
   1655 IPC_MESSAGE_ROUTED0(ViewHostMsg_Blur)
   1656 
   1657 // Message sent from renderer to the browser when focus changes inside the
   1658 // webpage. The parameter says whether the newly focused element needs
   1659 // keyboard input (true for textfields, text areas and content editable divs).
   1660 IPC_MESSAGE_ROUTED1(ViewHostMsg_FocusedNodeChanged,
   1661     bool /* is_editable_node */)
   1662 
   1663 IPC_MESSAGE_ROUTED1(ViewHostMsg_SetCursor,
   1664                     WebCursor)
   1665 
   1666 // Used to set a cookie. The cookie is set asynchronously, but will be
   1667 // available to a subsequent ViewHostMsg_GetCookies request.
   1668 IPC_MESSAGE_ROUTED3(ViewHostMsg_SetCookie,
   1669                     GURL /* url */,
   1670                     GURL /* first_party_for_cookies */,
   1671                     std::string /* cookie */)
   1672 
   1673 // Used to get cookies for the given URL. This may block waiting for a
   1674 // previous SetCookie message to be processed.
   1675 IPC_SYNC_MESSAGE_ROUTED2_1(ViewHostMsg_GetCookies,
   1676                            GURL /* url */,
   1677                            GURL /* first_party_for_cookies */,
   1678                            std::string /* cookies */)
   1679 
   1680 // Used to get raw cookie information for the given URL. This may block
   1681 // waiting for a previous SetCookie message to be processed.
   1682 IPC_SYNC_MESSAGE_CONTROL2_1(ViewHostMsg_GetRawCookies,
   1683                             GURL /* url */,
   1684                             GURL /* first_party_for_cookies */,
   1685                             std::vector<content::CookieData>
   1686                                 /* raw_cookies */)
   1687 
   1688 // Used to delete cookie for the given URL and name
   1689 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_DeleteCookie,
   1690                             GURL /* url */,
   1691                             std::string /* cookie_name */)
   1692 
   1693 // Used to check if cookies are enabled for the given URL. This may block
   1694 // waiting for a previous SetCookie message to be processed.
   1695 IPC_SYNC_MESSAGE_CONTROL2_1(ViewHostMsg_CookiesEnabled,
   1696                             GURL /* url */,
   1697                             GURL /* first_party_for_cookies */,
   1698                             bool /* cookies_enabled */)
   1699 
   1700 // Used to get the list of plugins
   1701 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_GetPlugins,
   1702     bool /* refresh*/,
   1703     std::vector<content::WebPluginInfo> /* plugins */)
   1704 
   1705 // Return information about a plugin for the given URL and MIME
   1706 // type. If there is no matching plugin, |found| is false.
   1707 // |actual_mime_type| is the actual mime type supported by the
   1708 // found plugin.
   1709 IPC_SYNC_MESSAGE_CONTROL4_3(ViewHostMsg_GetPluginInfo,
   1710                             int /* routing_id */,
   1711                             GURL /* url */,
   1712                             GURL /* page_url */,
   1713                             std::string /* mime_type */,
   1714                             bool /* found */,
   1715                             content::WebPluginInfo /* plugin info */,
   1716                             std::string /* actual_mime_type */)
   1717 
   1718 // A renderer sends this to the browser process when it wants to
   1719 // create a plugin.  The browser will create the plugin process if
   1720 // necessary, and will return a handle to the channel on success.
   1721 // On error an empty string is returned.
   1722 IPC_SYNC_MESSAGE_CONTROL4_2(ViewHostMsg_OpenChannelToPlugin,
   1723                             int /* routing_id */,
   1724                             GURL /* url */,
   1725                             GURL /* page_url */,
   1726                             std::string /* mime_type */,
   1727                             IPC::ChannelHandle /* channel_handle */,
   1728                             content::WebPluginInfo /* info */)
   1729 
   1730 #if defined(OS_WIN)
   1731 IPC_MESSAGE_ROUTED1(ViewHostMsg_WindowlessPluginDummyWindowCreated,
   1732                     gfx::NativeViewId /* dummy_activation_window */)
   1733 
   1734 IPC_MESSAGE_ROUTED1(ViewHostMsg_WindowlessPluginDummyWindowDestroyed,
   1735                     gfx::NativeViewId /* dummy_activation_window */)
   1736 #endif
   1737 
   1738 // Get the list of proxies to use for |url|, as a semicolon delimited list
   1739 // of "<TYPE> <HOST>:<PORT>" | "DIRECT".
   1740 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_ResolveProxy,
   1741                             GURL /* url */,
   1742                             bool /* result */,
   1743                             std::string /* proxy list */)
   1744 
   1745 // A renderer sends this to the browser process when it wants to create a
   1746 // worker.  The browser will create the worker process if necessary, and
   1747 // will return the route id on success.  On error returns MSG_ROUTING_NONE.
   1748 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_CreateWorker,
   1749                             ViewHostMsg_CreateWorker_Params,
   1750                             int /* route_id */)
   1751 
   1752 // This message is sent to the browser to see if an instance of this shared
   1753 // worker already exists. If so, it returns exists == true. If a
   1754 // non-empty name is passed, also validates that the url matches the url of
   1755 // the existing worker. If a matching worker is found, the passed-in
   1756 // document_id is associated with that worker, to ensure that the worker
   1757 // stays alive until the document is detached.
   1758 // The route_id returned can be used to forward messages to the worker via
   1759 // ForwardToWorker if it exists, otherwise it should be passed in to any
   1760 // future call to CreateWorker to avoid creating duplicate workers.
   1761 IPC_SYNC_MESSAGE_CONTROL1_3(ViewHostMsg_LookupSharedWorker,
   1762                             ViewHostMsg_CreateWorker_Params,
   1763                             bool /* exists */,
   1764                             int /* route_id */,
   1765                             bool /* url_mismatch */)
   1766 
   1767 // A renderer sends this to the browser process when a document has been
   1768 // detached. The browser will use this to constrain the lifecycle of worker
   1769 // processes (SharedWorkers are shut down when their last associated document
   1770 // is detached).
   1771 IPC_MESSAGE_CONTROL1(ViewHostMsg_DocumentDetached,
   1772                      uint64 /* document_id */)
   1773 
   1774 // Wraps an IPC message that's destined to the worker on the renderer->browser
   1775 // hop.
   1776 IPC_MESSAGE_CONTROL1(ViewHostMsg_ForwardToWorker,
   1777                      IPC::Message /* message */)
   1778 
   1779 // Tells the browser that a specific Appcache manifest in the current page
   1780 // was accessed.
   1781 IPC_MESSAGE_ROUTED2(ViewHostMsg_AppCacheAccessed,
   1782                     GURL /* manifest url */,
   1783                     bool /* blocked by policy */)
   1784 
   1785 // Initiates a download based on user actions like 'ALT+click'.
   1786 IPC_MESSAGE_ROUTED3(ViewHostMsg_DownloadUrl,
   1787                     GURL     /* url */,
   1788                     content::Referrer /* referrer */,
   1789                     string16 /* suggested_name */)
   1790 
   1791 // Used to go to the session history entry at the given offset (ie, -1 will
   1792 // return the "back" item).
   1793 IPC_MESSAGE_ROUTED1(ViewHostMsg_GoToEntryAtOffset,
   1794                     int /* offset (from current) of history item to get */)
   1795 
   1796 // Sent from an inactive renderer for the browser to route to the active
   1797 // renderer, instructing it to close.
   1798 IPC_MESSAGE_ROUTED0(ViewHostMsg_RouteCloseEvent)
   1799 
   1800 // Sent to the browser from an inactive renderer to post a message to the
   1801 // active renderer.
   1802 IPC_MESSAGE_ROUTED1(ViewHostMsg_RouteMessageEvent,
   1803                     ViewMsg_PostMessage_Params)
   1804 
   1805 IPC_SYNC_MESSAGE_ROUTED4_2(ViewHostMsg_RunJavaScriptMessage,
   1806                            string16     /* in - alert message */,
   1807                            string16     /* in - default prompt */,
   1808                            GURL         /* in - originating page URL */,
   1809                            content::JavaScriptMessageType /* in - type */,
   1810                            bool         /* out - success */,
   1811                            string16     /* out - user_input field */)
   1812 
   1813 // Requests that the given URL be opened in the specified manner.
   1814 IPC_MESSAGE_ROUTED1(ViewHostMsg_OpenURL, ViewHostMsg_OpenURL_Params)
   1815 
   1816 // Notifies that the preferred size of the content changed.
   1817 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidContentsPreferredSizeChange,
   1818                     gfx::Size /* pref_size */)
   1819 
   1820 // Notifies that the scroll offset changed.
   1821 // This is different from ViewHostMsg_UpdateRect in that ViewHostMsg_UpdateRect
   1822 // is not sent at all when threaded compositing is enabled while
   1823 // ViewHostMsg_DidChangeScrollOffset works properly in this case.
   1824 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidChangeScrollOffset)
   1825 
   1826 // Notifies that the pinned-to-side state of the content changed.
   1827 IPC_MESSAGE_ROUTED2(ViewHostMsg_DidChangeScrollOffsetPinningForMainFrame,
   1828                     bool /* pinned_to_left */,
   1829                     bool /* pinned_to_right */)
   1830 
   1831 // Notifies that the scrollbars-visible state of the content changed.
   1832 IPC_MESSAGE_ROUTED2(ViewHostMsg_DidChangeScrollbarsForMainFrame,
   1833                     bool /* has_horizontal_scrollbar */,
   1834                     bool /* has_vertical_scrollbar */)
   1835 
   1836 // Notifies that the number of JavaScript scroll handlers changed.
   1837 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidChangeNumWheelEvents,
   1838                     int /* count */)
   1839 
   1840 // Notifies whether there are JavaScript touch event handlers or not.
   1841 IPC_MESSAGE_ROUTED1(ViewHostMsg_HasTouchEventHandlers,
   1842                     bool /* has_handlers */)
   1843 
   1844 // A message from HTML-based UI.  When (trusted) Javascript calls
   1845 // send(message, args), this message is sent to the browser.
   1846 IPC_MESSAGE_ROUTED3(ViewHostMsg_WebUISend,
   1847                     GURL /* source_url */,
   1848                     std::string  /* message */,
   1849                     base::ListValue /* args */)
   1850 
   1851 // Requests a snapshot of the given window.
   1852 IPC_MESSAGE_ROUTED1(ViewHostMsg_GetWindowSnapshot,
   1853                     int /* snapshot_id */)
   1854 
   1855 // A renderer sends this to the browser process when it wants to create a ppapi
   1856 // plugin.  The browser will create the plugin process if necessary, and will
   1857 // return a handle to the channel on success.
   1858 //
   1859 // The plugin_child_id is the ChildProcessHost ID assigned in the browser
   1860 // process. This ID is valid only in the context of the browser process and is
   1861 // used to identify the proper process when the renderer notifies it that the
   1862 // plugin is hung.
   1863 //
   1864 // On error an empty string and null handles are returned.
   1865 IPC_SYNC_MESSAGE_CONTROL1_3(ViewHostMsg_OpenChannelToPepperPlugin,
   1866                             base::FilePath /* path */,
   1867                             IPC::ChannelHandle /* handle to channel */,
   1868                             base::ProcessId /* plugin_pid */,
   1869                             int /* plugin_child_id */)
   1870 
   1871 // Notification that a plugin has created a new plugin instance. The parameters
   1872 // indicate:
   1873 // -The plugin process ID that we're creating the instance for.
   1874 // -The instance ID of the instance being created.
   1875 // -A PepperRendererInstanceData struct which contains properties from the
   1876 // renderer which are associated with the plugin instance. This includes the
   1877 // routing ID of the associated render view and the URL of plugin.
   1878 // -Whether the plugin we're creating an instance for is external or internal.
   1879 //
   1880 // This message must be sync even though it returns no parameters to avoid
   1881 // a race condition with the plugin process. The plugin process sends messages
   1882 // to the browser that assume the browser knows about the instance. We need to
   1883 // make sure that the browser actually knows about the instance before we tell
   1884 // the plugin to run.
   1885 IPC_SYNC_MESSAGE_CONTROL4_0(
   1886     ViewHostMsg_DidCreateOutOfProcessPepperInstance,
   1887     int /* plugin_child_id */,
   1888     int32 /* pp_instance */,
   1889     content::PepperRendererInstanceData /* creation_data */,
   1890     bool /* is_external */)
   1891 
   1892 // Notification that a plugin has destroyed an instance. This is the opposite of
   1893 // the "DidCreate" message above.
   1894 IPC_MESSAGE_CONTROL3(ViewHostMsg_DidDeleteOutOfProcessPepperInstance,
   1895                      int /* plugin_child_id */,
   1896                      int32 /* pp_instance */,
   1897                      bool /* is_external */)
   1898 
   1899 // Message from the renderer to the browser indicating the in-process instance
   1900 // has been created.
   1901 IPC_MESSAGE_CONTROL2(ViewHostMsg_DidCreateInProcessInstance,
   1902                      int32 /* instance */,
   1903                      content::PepperRendererInstanceData /* instance_data */)
   1904 
   1905 // Message from the renderer to the browser indicating the in-process instance
   1906 // has been destroyed.
   1907 IPC_MESSAGE_CONTROL1(ViewHostMsg_DidDeleteInProcessInstance,
   1908                      int32 /* instance */)
   1909 
   1910 // A renderer sends this to the browser process when it wants to
   1911 // create a ppapi broker.  The browser will create the broker process
   1912 // if necessary, and will return a handle to the channel on success.
   1913 // On error an empty string is returned.
   1914 // The browser will respond with ViewMsg_PpapiBrokerChannelCreated.
   1915 IPC_MESSAGE_CONTROL2(ViewHostMsg_OpenChannelToPpapiBroker,
   1916                      int /* routing_id */,
   1917                      base::FilePath /* path */)
   1918 
   1919 // Opens a Pepper file asynchronously. The response returns a file descriptor
   1920 // and an error code from base/platform_file.h.
   1921 IPC_MESSAGE_CONTROL4(ViewHostMsg_AsyncOpenPepperFile,
   1922                      int /* routing_id */,
   1923                      base::FilePath /* file path */,
   1924                      int /* pp_open_flags */,
   1925                      int /* message_id */)
   1926 
   1927 // A renderer sends this to the browser process when it wants to access a PPAPI
   1928 // broker. In contrast to ViewHostMsg_OpenChannelToPpapiBroker, this is called
   1929 // for every connection.
   1930 // The browser will respond with ViewMsg_PpapiBrokerPermissionResult.
   1931 IPC_MESSAGE_ROUTED3(ViewHostMsg_RequestPpapiBrokerPermission,
   1932                     int /* routing_id */,
   1933                     GURL /* document_url */,
   1934                     base::FilePath /* plugin_path */)
   1935 
   1936 #if defined(USE_X11)
   1937 // A renderer sends this when it needs a browser-side widget for
   1938 // hosting a windowed plugin. id is the XID of the plugin window, for which
   1939 // the container is created.
   1940 IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_CreatePluginContainer,
   1941                            gfx::PluginWindowHandle /* id */)
   1942 
   1943 // Destroy a plugin container previously created using CreatePluginContainer.
   1944 // id is the XID of the plugin window corresponding to the container that is
   1945 // to be destroyed.
   1946 IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_DestroyPluginContainer,
   1947                            gfx::PluginWindowHandle /* id */)
   1948 #endif
   1949 
   1950 // Send the tooltip text for the current mouse position to the browser.
   1951 IPC_MESSAGE_ROUTED2(ViewHostMsg_SetTooltipText,
   1952                     string16 /* tooltip text string */,
   1953                     WebKit::WebTextDirection /* text direction hint */)
   1954 
   1955 IPC_MESSAGE_ROUTED0(ViewHostMsg_SelectRange_ACK)
   1956 IPC_MESSAGE_ROUTED0(ViewHostMsg_MoveCaret_ACK)
   1957 
   1958 // Notification that the text selection has changed.
   1959 // Note: The secound parameter is the character based offset of the string16
   1960 // text in the document.
   1961 IPC_MESSAGE_ROUTED3(ViewHostMsg_SelectionChanged,
   1962                     string16 /* text covers the selection range */,
   1963                     size_t /* the offset of the text in the document */,
   1964                     ui::Range /* selection range in the document */)
   1965 
   1966 // Notification that the selection bounds have changed.
   1967 IPC_MESSAGE_ROUTED1(ViewHostMsg_SelectionBoundsChanged,
   1968                     ViewHostMsg_SelectionBounds_Params)
   1969 
   1970 // Asks the browser to open the color chooser.
   1971 IPC_MESSAGE_ROUTED2(ViewHostMsg_OpenColorChooser,
   1972                     int /* id */,
   1973                     SkColor /* color */)
   1974 
   1975 // Asks the browser to end the color chooser.
   1976 IPC_MESSAGE_ROUTED1(ViewHostMsg_EndColorChooser, int /* id */)
   1977 
   1978 // Change the selected color in the color chooser.
   1979 IPC_MESSAGE_ROUTED2(ViewHostMsg_SetSelectedColorInColorChooser,
   1980                     int /* id */,
   1981                     SkColor /* color */)
   1982 
   1983 // Asks the browser to display the file chooser.  The result is returned in a
   1984 // ViewHost_RunFileChooserResponse message.
   1985 IPC_MESSAGE_ROUTED1(ViewHostMsg_RunFileChooser,
   1986                     content::FileChooserParams)
   1987 
   1988 // Asks the browser to enumerate a directory.  This is equivalent to running
   1989 // the file chooser in directory-enumeration mode and having the user select
   1990 // the given directory.  The result is returned in a
   1991 // ViewMsg_EnumerateDirectoryResponse message.
   1992 IPC_MESSAGE_ROUTED2(ViewHostMsg_EnumerateDirectory,
   1993                     int /* request_id */,
   1994                     base::FilePath /* file_path */)
   1995 
   1996 // Tells the browser to move the focus to the next (previous if reverse is
   1997 // true) focusable element.
   1998 IPC_MESSAGE_ROUTED1(ViewHostMsg_TakeFocus,
   1999                     bool /* reverse */)
   2000 
   2001 // Required for opening a date/time dialog
   2002 IPC_MESSAGE_ROUTED1(ViewHostMsg_OpenDateTimeDialog,
   2003                     ViewHostMsg_DateTimeDialogValue_Params /* value */)
   2004 
   2005 IPC_MESSAGE_ROUTED3(ViewHostMsg_TextInputTypeChanged,
   2006                     ui::TextInputType /* TextInputType of the focused node */,
   2007                     bool /* can_compose_inline in the focused node */,
   2008                     ui::TextInputMode /* TextInputMode of the focused node */)
   2009 
   2010 // Required for updating text input state.
   2011 IPC_MESSAGE_ROUTED1(ViewHostMsg_TextInputStateChanged,
   2012                     ViewHostMsg_TextInputState_Params /* input state params */)
   2013 
   2014 // Required for cancelling an ongoing input method composition.
   2015 IPC_MESSAGE_ROUTED0(ViewHostMsg_ImeCancelComposition)
   2016 
   2017 // WebKit and JavaScript error messages to log to the console
   2018 // or debugger UI.
   2019 IPC_MESSAGE_ROUTED4(ViewHostMsg_AddMessageToConsole,
   2020                     int32, /* log level */
   2021                     string16, /* msg */
   2022                     int32, /* line number */
   2023                     string16 /* source id */)
   2024 
   2025 // Sent by the renderer process to indicate that a plugin instance has crashed.
   2026 // Note: |plugin_pid| should not be trusted. The corresponding process has
   2027 // probably died. Moreover, the ID may have been reused by a new process. Any
   2028 // usage other than displaying it in a prompt to the user is very likely to be
   2029 // wrong.
   2030 IPC_MESSAGE_ROUTED2(ViewHostMsg_CrashedPlugin,
   2031                     base::FilePath /* plugin_path */,
   2032                     base::ProcessId /* plugin_pid */)
   2033 
   2034 // Displays a box to confirm that the user wants to navigate away from the
   2035 // page. Replies true if yes, false otherwise, the reply string is ignored,
   2036 // but is included so that we can use OnJavaScriptMessageBoxClosed.
   2037 IPC_SYNC_MESSAGE_ROUTED3_2(ViewHostMsg_RunBeforeUnloadConfirm,
   2038                            GURL,     /* in - originating frame URL */
   2039                            string16  /* in - alert message */,
   2040                            bool      /* in - is a reload */,
   2041                            bool      /* out - success */,
   2042                            string16  /* out - This is ignored.*/)
   2043 
   2044 // Sent when a provisional load on the main frame redirects.
   2045 IPC_MESSAGE_ROUTED3(ViewHostMsg_DidRedirectProvisionalLoad,
   2046                     int /* page_id */,
   2047                     GURL /* last url */,
   2048                     GURL /* url redirected to */)
   2049 
   2050 // Sent when the renderer changes the zoom level for a particular url, so the
   2051 // browser can update its records.  If remember is true, then url is used to
   2052 // update the zoom level for all pages in that site.  Otherwise, the render
   2053 // view's id is used so that only the menu is updated.
   2054 IPC_MESSAGE_ROUTED3(ViewHostMsg_DidZoomURL,
   2055                     double /* zoom_level */,
   2056                     bool /* remember */,
   2057                     GURL /* url */)
   2058 
   2059 // Updates the minimum/maximum allowed zoom percent for this tab from the
   2060 // default values.  If |remember| is true, then the zoom setting is applied to
   2061 // other pages in the site and is saved, otherwise it only applies to this
   2062 // tab.
   2063 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateZoomLimits,
   2064                     int /* minimum_percent */,
   2065                     int /* maximum_percent */,
   2066                     bool /* remember */)
   2067 
   2068 // Notify the browser that this render process can or can't be suddenly
   2069 // terminated.
   2070 IPC_MESSAGE_CONTROL1(ViewHostMsg_SuddenTerminationChanged,
   2071                      bool /* enabled */)
   2072 
   2073 // Informs the browser of updated frame names.
   2074 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateFrameName,
   2075                     int /* frame_id */,
   2076                     bool /* is_top_level */,
   2077                     std::string /* name */)
   2078 
   2079 
   2080 IPC_STRUCT_BEGIN(ViewHostMsg_CompositorSurfaceBuffersSwapped_Params)
   2081   IPC_STRUCT_MEMBER(int32, surface_id)
   2082   IPC_STRUCT_MEMBER(uint64, surface_handle)
   2083   IPC_STRUCT_MEMBER(int32, route_id)
   2084   IPC_STRUCT_MEMBER(gfx::Size, size)
   2085   IPC_STRUCT_MEMBER(float, scale_factor)
   2086   IPC_STRUCT_MEMBER(int32, gpu_process_host_id)
   2087   IPC_STRUCT_MEMBER(ui::LatencyInfo, latency_info)
   2088 IPC_STRUCT_END()
   2089 
   2090 // This message is synthesized by GpuProcessHost to pass through a swap message
   2091 // to the RenderWidgetHelper. This allows GetBackingStore to block for either a
   2092 // software or GPU frame.
   2093 IPC_MESSAGE_ROUTED1(
   2094     ViewHostMsg_CompositorSurfaceBuffersSwapped,
   2095     ViewHostMsg_CompositorSurfaceBuffersSwapped_Params /* params */)
   2096 
   2097 IPC_MESSAGE_ROUTED2(ViewHostMsg_SwapCompositorFrame,
   2098                     uint32 /* output_surface_id */,
   2099                     cc::CompositorFrame /* frame */)
   2100 
   2101 // Sent by the compositor when input scroll events are dropped due to bounds
   2102 // restricions on the root scroll offset.
   2103 IPC_MESSAGE_ROUTED2(ViewHostMsg_DidOverscroll,
   2104                     gfx::Vector2dF /* accumulated_overscroll */,
   2105                     gfx::Vector2dF /* current_fling_velocity */)
   2106 
   2107 // Reply to a snapshot request containing whether snapshotting succeeded and the
   2108 // SkBitmap if it succeeded.
   2109 IPC_MESSAGE_ROUTED2(ViewHostMsg_Snapshot,
   2110                     bool, /* success */
   2111                     SkBitmap /* bitmap */)
   2112 
   2113 //---------------------------------------------------------------------------
   2114 // Request for cryptographic operation messages:
   2115 // These are messages from the renderer to the browser to perform a
   2116 // cryptographic operation.
   2117 
   2118 // Asks the browser process to generate a keypair for grabbing a client
   2119 // certificate from a CA (<keygen> tag), and returns the signed public
   2120 // key and challenge string.
   2121 IPC_SYNC_MESSAGE_CONTROL3_1(ViewHostMsg_Keygen,
   2122                             uint32 /* key size index */,
   2123                             std::string /* challenge string */,
   2124                             GURL /* URL of requestor */,
   2125                             std::string /* signed public key and challenge */)
   2126 
   2127 // Message sent from the renderer to the browser to request that the browser
   2128 // cache |data| associated with |url|.
   2129 IPC_MESSAGE_CONTROL3(ViewHostMsg_DidGenerateCacheableMetadata,
   2130                      GURL /* url */,
   2131                      double /* expected_response_time */,
   2132                      std::vector<char> /* data */)
   2133 
   2134 // Displays a JavaScript out-of-memory message in the infobar.
   2135 IPC_MESSAGE_ROUTED0(ViewHostMsg_JSOutOfMemory)
   2136 
   2137 // Register a new handler for URL requests with the given scheme.
   2138 IPC_MESSAGE_ROUTED4(ViewHostMsg_RegisterProtocolHandler,
   2139                     std::string /* scheme */,
   2140                     GURL /* url */,
   2141                     string16 /* title */,
   2142                     bool /* user_gesture */)
   2143 
   2144 // Stores new inspector setting in the profile.
   2145 // TODO(jam): this should be in the chrome module
   2146 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
   2147                     std::string,  /* key */
   2148                     std::string /* value */)
   2149 
   2150 // Puts the browser into "tab fullscreen" mode for the sending renderer.
   2151 // See the comment in chrome/browser/ui/browser.h for more details.
   2152 IPC_MESSAGE_ROUTED1(ViewHostMsg_ToggleFullscreen,
   2153                     bool /* enter_fullscreen */)
   2154 
   2155 // Send back a string to be recorded by UserMetrics.
   2156 IPC_MESSAGE_CONTROL1(ViewHostMsg_UserMetricsRecordAction,
   2157                      std::string /* action */)
   2158 
   2159 // Notifies the browser that the page was or was not saved as MHTML.
   2160 IPC_MESSAGE_CONTROL2(ViewHostMsg_SavedPageAsMHTML,
   2161                      int /* job_id */,
   2162                      int64 /* size of the MHTML file, -1 if error */)
   2163 
   2164 IPC_MESSAGE_ROUTED3(ViewHostMsg_SendCurrentPageAllSavableResourceLinks,
   2165                     std::vector<GURL> /* all savable resource links */,
   2166                     std::vector<content::Referrer> /* all referrers */,
   2167                     std::vector<GURL> /* all frame links */)
   2168 
   2169 IPC_MESSAGE_ROUTED3(ViewHostMsg_SendSerializedHtmlData,
   2170                     GURL /* frame's url */,
   2171                     std::string /* data buffer */,
   2172                     int32 /* complete status */)
   2173 
   2174 // Notifies the browser of an event occurring in the media pipeline.
   2175 IPC_MESSAGE_CONTROL1(ViewHostMsg_MediaLogEvents,
   2176                      std::vector<media::MediaLogEvent> /* events */)
   2177 
   2178 // Requests to lock the mouse. Will result in a ViewMsg_LockMouse_ACK message
   2179 // being sent back.
   2180 // |privileged| is used by Pepper Flash. If this flag is set to true, we won't
   2181 // pop up a bubble to ask for user permission or take mouse lock content into
   2182 // account.
   2183 IPC_MESSAGE_ROUTED3(ViewHostMsg_LockMouse,
   2184                     bool /* user_gesture */,
   2185                     bool /* last_unlocked_by_target */,
   2186                     bool /* privileged */)
   2187 
   2188 // Requests to unlock the mouse. A ViewMsg_MouseLockLost message will be sent
   2189 // whenever the mouse is unlocked (which may or may not be caused by
   2190 // ViewHostMsg_UnlockMouse).
   2191 IPC_MESSAGE_ROUTED0(ViewHostMsg_UnlockMouse)
   2192 
   2193 // Notifies that the initial empty document of a view has been accessed.
   2194 // After this, it is no longer safe to show a pending navigation's URL without
   2195 // making a URL spoof possible.
   2196 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidAccessInitialDocument)
   2197 
   2198 // Following message is used to communicate the values received by the
   2199 // callback binding the JS to Cpp.
   2200 // An instance of browser that has an automation host listening to it can
   2201 // have a javascript send a native value (string, number, boolean) to the
   2202 // listener in Cpp. (DomAutomationController)
   2203 IPC_MESSAGE_ROUTED2(ViewHostMsg_DomOperationResponse,
   2204                     std::string  /* json_string */,
   2205                     int  /* automation_id */)
   2206 
   2207 // Sent to the browser when the renderer detects it is blocked on a pepper
   2208 // plugin message for too long. This is also sent when it becomes unhung
   2209 // (according to the value of is_hung). The browser can give the user the
   2210 // option of killing the plugin.
   2211 IPC_MESSAGE_ROUTED3(ViewHostMsg_PepperPluginHung,
   2212                     int /* plugin_child_id */,
   2213                     base::FilePath /* path */,
   2214                     bool /* is_hung */)
   2215 
   2216 // Notifies that multiple touch targets may have been pressed, and to show
   2217 // the disambiguation popup.
   2218 IPC_MESSAGE_ROUTED3(ViewHostMsg_ShowDisambiguationPopup,
   2219                     gfx::Rect, /* Border of touched targets */
   2220                     gfx::Size, /* Size of zoomed image */
   2221                     TransportDIB::Id /* DIB of zoomed image */)
   2222 
   2223 // Sent by the renderer process to check whether client 3D APIs
   2224 // (Pepper 3D, WebGL) are explicitly blocked.
   2225 IPC_SYNC_MESSAGE_CONTROL3_1(ViewHostMsg_Are3DAPIsBlocked,
   2226                             int /* render_view_id */,
   2227                             GURL /* top_origin_url */,
   2228                             content::ThreeDAPIType /* requester */,
   2229                             bool /* blocked */)
   2230 
   2231 // Sent by the renderer process to indicate that a context was lost by
   2232 // client 3D content (Pepper 3D, WebGL) running on the page at the
   2233 // given URL.
   2234 IPC_MESSAGE_CONTROL3(ViewHostMsg_DidLose3DContext,
   2235                      GURL /* top_origin_url */,
   2236                      content::ThreeDAPIType /* context_type */,
   2237                      int /* arb_robustness_status_code */)
   2238 
   2239 // This message is sent when a frame is added to the DOM.
   2240 IPC_MESSAGE_ROUTED3(ViewHostMsg_FrameAttached,
   2241                     int64 /* parent_frame_id*/,
   2242                     int64 /* frame_id */,
   2243                     std::string /* frame_name */)
   2244 
   2245 // Notifies the browser that the frame with the given id was detached. The
   2246 // |parent_frame_id| is -1 for the top level frame, otherwise the id of the
   2247 // immediate parent of the detached frame.
   2248 IPC_MESSAGE_ROUTED2(ViewHostMsg_FrameDetached,
   2249                     int64 /* parent_frame_id */,
   2250                     int64 /* frame_id */)
   2251 
   2252 // Notifies the browser that document has parsed the body. This is used by the
   2253 // ResourceScheduler as an indication that bandwidth contention won't block
   2254 // first paint.
   2255 IPC_MESSAGE_ROUTED0(ViewHostMsg_WillInsertBody)
   2256 
   2257 // Notification that the urls for the favicon of a site has been determined.
   2258 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateFaviconURL,
   2259                     int32 /* page_id */,
   2260                     std::vector<content::FaviconURL> /* candidates */)
   2261 
   2262 // Sent once a paint happens after the first non empty layout. In other words
   2263 // after the page has painted something.
   2264 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidFirstVisuallyNonEmptyPaint,
   2265                     int /* page_id */)
   2266 
   2267 #if defined(OS_ANDROID)
   2268 // Response to ViewMsg_FindMatchRects.
   2269 //
   2270 // |version| will contain the current version number of the renderer's find
   2271 // match list (incremented whenever they change), which should be passed in the
   2272 // next call to ViewMsg_FindMatchRects.
   2273 //
   2274 // |rects| will either contain a list of the enclosing rects of all matches
   2275 // found by the most recent Find operation, or will be empty if |version| is not
   2276 // greater than the |current_version| passed to ViewMsg_FindMatchRects (hence
   2277 // your locally cached rects should still be valid). The rect coords will be
   2278 // custom normalized fractions of the document size. The rects will be sorted by
   2279 // frame traversal order starting in the main frame, then by dom order.
   2280 //
   2281 // |active_rect| will contain the bounding box of the active find-in-page match
   2282 // marker, in similarly normalized coords (or an empty rect if there isn't one).
   2283 IPC_MESSAGE_ROUTED3(ViewHostMsg_FindMatchRects_Reply,
   2284                     int /* version */,
   2285                     std::vector<gfx::RectF> /* rects */,
   2286                     gfx::RectF /* active_rect */)
   2287 
   2288 // Start an android intent with the given URI.
   2289 IPC_MESSAGE_ROUTED1(ViewHostMsg_StartContentIntent,
   2290                     GURL /* content_url */)
   2291 
   2292 // Message sent when the renderer changed the background color for the view.
   2293 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidChangeBodyBackgroundColor,
   2294                     uint32  /* bg_color */)
   2295 
   2296 // This message is an ACK that the batch state change has been received by
   2297 // the renderer and all IME related messages should be processed accordingly.
   2298 IPC_MESSAGE_ROUTED1(ViewHostMsg_ImeBatchStateChanged_ACK,
   2299                     bool /* is_begin */)
   2300 
   2301 // This message runs the MediaCodec for decoding audio for webaudio.
   2302 IPC_MESSAGE_CONTROL3(ViewHostMsg_RunWebAudioMediaCodec,
   2303                      base::SharedMemoryHandle /* encoded_data_handle */,
   2304                      base::FileDescriptor /* pcm_output */,
   2305                      uint32_t /* data_size*/)
   2306 
   2307 // Sent by renderer to request a ViewMsg_BeginFrame message for upcoming
   2308 // display events. If |enabled| is true, the BeginFrame message will continue
   2309 // to be be delivered until the notification is disabled.
   2310 IPC_MESSAGE_ROUTED1(ViewHostMsg_SetNeedsBeginFrame,
   2311                     bool /* enabled */)
   2312 
   2313 // Sent by the renderer to the browser to start a vibration with the given
   2314 // duration.
   2315 IPC_MESSAGE_CONTROL1(ViewHostMsg_Vibrate,
   2316                      int64 /* milliseconds */)
   2317 
   2318 // Sent by the renderer to the browser to cancel the currently running
   2319 // vibration, if there is one.
   2320 IPC_MESSAGE_CONTROL0(ViewHostMsg_CancelVibration)
   2321 
   2322 #elif defined(OS_MACOSX)
   2323 // Request that the browser load a font into shared memory for us.
   2324 IPC_SYNC_MESSAGE_CONTROL1_3(ViewHostMsg_LoadFont,
   2325                            FontDescriptor /* font to load */,
   2326                            uint32 /* buffer size */,
   2327                            base::SharedMemoryHandle /* font data */,
   2328                            uint32 /* font id */)
   2329 
   2330 // Informs the browser that a plugin has gained or lost focus.
   2331 IPC_MESSAGE_ROUTED2(ViewHostMsg_PluginFocusChanged,
   2332                     bool, /* focused */
   2333                     int /* plugin_id */)
   2334 
   2335 // Instructs the browser to start plugin IME.
   2336 IPC_MESSAGE_ROUTED0(ViewHostMsg_StartPluginIme)
   2337 
   2338 #elif defined(OS_WIN)
   2339 // Request that the given font characters be loaded by the browser so it's
   2340 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
   2341 // for details.
   2342 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
   2343                             LOGFONT /* font_data */,
   2344                             string16 /* characters */)
   2345 #endif
   2346 
   2347 #if defined(OS_POSIX)
   2348 // On POSIX, we cannot allocated shared memory from within the sandbox, so
   2349 // this call exists for the renderer to ask the browser to allocate memory
   2350 // on its behalf. We return a file descriptor to the POSIX shared memory.
   2351 // If the |cache_in_browser| flag is |true|, then a copy of the shmem is kept
   2352 // by the browser, and it is the caller's repsonsibility to send a
   2353 // ViewHostMsg_FreeTransportDIB message in order to release the cached shmem.
   2354 // In all cases, the caller is responsible for deleting the resulting
   2355 // TransportDIB.
   2356 IPC_SYNC_MESSAGE_CONTROL2_1(ViewHostMsg_AllocTransportDIB,
   2357                             uint32_t, /* bytes requested */
   2358                             bool, /* cache in the browser */
   2359                             TransportDIB::Handle /* DIB */)
   2360 
   2361 // Since the browser keeps handles to the allocated transport DIBs, this
   2362 // message is sent to tell the browser that it may release them when the
   2363 // renderer is finished with them.
   2364 IPC_MESSAGE_CONTROL1(ViewHostMsg_FreeTransportDIB,
   2365                      TransportDIB::Id /* DIB id */)
   2366 #endif
   2367 
   2368 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
   2369 // On MACOSX, WIN and AURA IME can request composition character bounds
   2370 // synchronously (see crbug.com/120597). This IPC message sends the character
   2371 // bounds after every composition change to always have correct bound info.
   2372 IPC_MESSAGE_ROUTED2(ViewHostMsg_ImeCompositionRangeChanged,
   2373                     ui::Range /* composition range */,
   2374                     std::vector<gfx::Rect> /* character bounds */)
   2375 #endif
   2376 
   2377 // Adding a new message? Stick to the sort order above: first platform
   2378 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
   2379 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.
   2380