Changes to content/ to facilitate new zoom extension API

content/common/view_messages.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
@@ skipping 69 matching lines @@
 IPC_ENUM_TRAITS(content::JavaScriptMessageType)
 IPC_ENUM_TRAITS(content::MenuItem::Type)
 IPC_ENUM_TRAITS(content::NavigationGesture)
 IPC_ENUM_TRAITS(content::PageZoom)
 IPC_ENUM_TRAITS(content::RendererPreferencesHintingEnum)
 IPC_ENUM_TRAITS(content::RendererPreferencesSubpixelRenderingEnum)
 IPC_ENUM_TRAITS_MAX_VALUE(content::TapMultipleTargetsStrategy,
                           content::TAP_MULTIPLE_TARGETS_STRATEGY_MAX)
 IPC_ENUM_TRAITS(content::StopFindAction)
 IPC_ENUM_TRAITS(content::ThreeDAPIType)
+IPC_ENUM_TRAITS(content::ZoomMode)
 IPC_ENUM_TRAITS(media::ChannelLayout)
 IPC_ENUM_TRAITS(media::MediaLogEvent::Type)
 IPC_ENUM_TRAITS_MAX_VALUE(ui::TextInputMode, ui::TEXT_INPUT_MODE_MAX)
 IPC_ENUM_TRAITS(ui::TextInputType)
 
 #if defined(OS_MACOSX)
 IPC_STRUCT_TRAITS_BEGIN(FontDescriptor)
   IPC_STRUCT_TRAITS_MEMBER(font_name)
   IPC_STRUCT_TRAITS_MEMBER(font_point_size)
 IPC_STRUCT_TRAITS_END()
@@ skipping 605 matching lines @@
 
 // Change the zoom level for the current main frame.  If the level actually
 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
 // telling it what url got zoomed and what its current zoom level is.
 IPC_MESSAGE_ROUTED1(ViewMsg_Zoom,
                     content::PageZoom /* function */)
 
 // Set the zoom level for the current main frame.  If the level actually
 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
 // telling it what url got zoomed and what its current zoom level is.
-IPC_MESSAGE_ROUTED1(ViewMsg_SetZoomLevel,
-                    double /* zoom_level */)
+IPC_MESSAGE_ROUTED3(ViewMsg_SetZoomLevel,
+                    int /* zoom_id */,
+                    double /* zoom_level */,
+                    content::ZoomMode /* zoom_mode */)
 
 // Set the zoom level for a particular url that the renderer is in the
 // process of loading.  This will be stored, to be used if the load commits
 // and ignored otherwise.
 IPC_MESSAGE_ROUTED2(ViewMsg_SetZoomLevelForLoadingURL,
                     GURL /* url */,
                     double /* zoom_level */)
 
 // Set the zoom level for a particular url, so all render views
 // displaying this url can update their zoom levels to match.
 // If scheme is empty, then only host is used for matching.
-IPC_MESSAGE_CONTROL3(ViewMsg_SetZoomLevelForCurrentURL,
+IPC_MESSAGE_CONTROL4(ViewMsg_SetZoomLevelForCurrentURL,
                      std::string /* scheme */,
                      std::string /* host */,
-                     double /* zoom_level */)
+                     double /* zoom_level */,
+                     std::set<int> /* exceptions */)
 
 // Change encoding of page in the renderer.
 IPC_MESSAGE_ROUTED1(ViewMsg_SetPageEncoding,
                     std::string /*new encoding name*/)
 
 // Reset encoding of page in the renderer back to default.
 IPC_MESSAGE_ROUTED0(ViewMsg_ResetPageEncodingToDefault)
 
 // Used to tell a render view whether it should expose various bindings
 // that allow JS content extended privileges.  See BindingsPolicy for valid
@@ skipping 830 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED3_2(ViewHostMsg_RunBeforeUnloadConfirm,
                            GURL,           /* in - originating frame URL */
                            base::string16  /* in - alert message */,
                            bool            /* in - is a reload */,
                            bool            /* out - success */,
                            base::string16  /* out - This is ignored.*/)
 
 // Sent when the renderer changes the zoom level for a particular url, so the
 // browser can update its records.  If remember is true, then url is used to
 // update the zoom level for all pages in that site.  Otherwise, the render
-// view's id is used so that only the menu is updated.
-IPC_MESSAGE_ROUTED3(ViewHostMsg_DidZoomURL,
+// view's id is used so that only the menu is updated. |zoom_id| uniquely
+// identifies this zoom change.
+IPC_MESSAGE_ROUTED4(ViewHostMsg_DidZoomURL,
+                    int /* zoom_id */,
                     double /* zoom_level */,
                     bool /* remember */,
                     GURL /* url */)
 
 // Updates the minimum/maximum allowed zoom percent for this tab from the
 // default values.  If |remember| is true, then the zoom setting is applied to
 // other pages in the site and is saved, otherwise it only applies to this
 // tab.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateZoomLimits,
                     int /* minimum_percent */,
@@ skipping 298 matching lines @@
 // synchronously (see crbug.com/120597). This IPC message sends the character
 // bounds after every composition change to always have correct bound info.
 IPC_MESSAGE_ROUTED2(ViewHostMsg_ImeCompositionRangeChanged,
                     gfx::Range /* composition range */,
                     std::vector<gfx::Rect> /* character bounds */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.