Switch AccessibilityMode to be a bitmap

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 54 matching lines @@
 
 #if defined(OS_MACOSX)
 #include "content/common/mac/font_descriptor.h"
 #endif
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START ViewMsgStart
 
-IPC_ENUM_TRAITS(AccessibilityMode)
+IPC_ENUM_TRAITS(AccessibilityModeFlag)
 IPC_ENUM_TRAITS(ViewMsg_Navigate_Type::Value)
 IPC_ENUM_TRAITS(blink::WebContextMenuData::MediaType)
 IPC_ENUM_TRAITS(blink::WebMediaPlayerAction::Type)
 IPC_ENUM_TRAITS(blink::WebPluginAction::Type)
 IPC_ENUM_TRAITS(blink::WebPopupType)
 IPC_ENUM_TRAITS(blink::WebTextDirection)
 IPC_ENUM_TRAITS(WindowContainerType)
 IPC_ENUM_TRAITS(content::FaviconURL::IconType)
 IPC_ENUM_TRAITS(content::FileChooserParams::Mode)
 IPC_ENUM_TRAITS(content::JavaScriptMessageType)
@@ skipping 649 matching lines @@
 
   // The initial page ID to use for this view, which must be larger than any
   // existing navigation that might be loaded in the view.  Page IDs are unique
   // to a view and are only updated by the renderer after this initial value.
   IPC_STRUCT_MEMBER(int32, next_page_id)
 
   // The properties of the screen associated with the view.
   IPC_STRUCT_MEMBER(blink::WebScreenInfo, screen_info)
 
   // The accessibility mode of the renderer.
-  IPC_STRUCT_MEMBER(AccessibilityMode, accessibility_mode)
+  IPC_STRUCT_MEMBER(unsigned int, accessibility_mode)
 
   // Specifies whether partially swapping composited buffers is
   // allowed for a renderer. Partial swaps will be used if they are both
   // allowed and supported.
   IPC_STRUCT_MEMBER(bool, allow_partial_swap)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(ViewMsg_PostMessage_Params)
   // The serialized script value.
   IPC_STRUCT_MEMBER(base::string16, data)
@@ skipping 508 matching lines @@
 IPC_MESSAGE_ROUTED2(ViewMsg_SavePageAsMHTML,
                     int /* job_id */,
                     IPC::PlatformFileForTransit /* file handle */)
 
 // Temporary message to diagnose an unexpected condition in WebContentsImpl.
 IPC_MESSAGE_CONTROL1(ViewMsg_TempCrashWithData,
                      GURL /* data */)
 
 // Change the accessibility mode in the renderer process.
 IPC_MESSAGE_ROUTED1(ViewMsg_SetAccessibilityMode,
-                    AccessibilityMode)
+                    unsigned int /* accessibility_mode */)
 
 // An acknowledge to ViewHostMsg_MultipleTargetsTouched to notify the renderer
 // process to release the magnified image.
 IPC_MESSAGE_ROUTED1(ViewMsg_ReleaseDisambiguationPopupDIB,
                     TransportDIB::Handle /* DIB handle */)
 
 // Notifies the renderer that a snapshot has been retrieved.
 IPC_MESSAGE_ROUTED3(ViewMsg_WindowSnapshotCompleted,
                     int /* snapshot_id */,
                     gfx::Size /* size */,
@@ skipping 1046 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.