Revert 46567 - Reimplement accessibility of web content by caching the entire...

chrome/common/render_messages_internal.h

 // Copyright (c) 2010 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 494 matching lines @@
   // pages containing plugins.
   IPC_MESSAGE_CONTROL1(ViewMsg_PurgePluginListCache,
                        bool /* reload_pages */)
 
   IPC_MESSAGE_ROUTED1(ViewMsg_RunFileChooserResponse,
                       std::vector<FilePath> /* selected files */)
 
   // Used to instruct the RenderView to go into "view source" mode.
   IPC_MESSAGE_ROUTED0(ViewMsg_EnableViewSourceMode)
 
+  // Retreive information from the MSAA DOM subtree, for accessibility purposes.
+  IPC_SYNC_MESSAGE_ROUTED1_1(ViewMsg_GetAccessibilityInfo,
+                             webkit_glue::WebAccessibility::InParams
+                             /* input parameters */,
+                             webkit_glue::WebAccessibility::OutParams
+                             /* output parameters */)
+
+  // Requests the renderer to clear cashed accessibility information. Takes an
+  // id to clear a specific hashmap entry, and a bool; true clears all, false
+  // does not.
+  IPC_MESSAGE_ROUTED2(ViewMsg_ClearAccessibilityInfo,
+                      int  /* accessibility object id */,
+                      bool /* clear_all */)
+
   // Get all savable resource links from current webpage, include main
   // frame and sub-frame.
   IPC_MESSAGE_ROUTED1(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
                       GURL /* url of page which is needed to save */)
 
   // Get html data by serializing all frames of current page with lists
   // which contain all resource links that have local copy.
   IPC_MESSAGE_ROUTED3(ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
                       std::vector<GURL> /* urls that have local copy */,
                       std::vector<FilePath> /* paths of local copy */,
@@ skipping 397 matching lines @@
                       std::string /* message */)
 
   // Sent on process startup to indicate whether this process is running in
   // incognito mode.
   IPC_MESSAGE_CONTROL1(ViewMsg_SetIsIncognitoProcess,
                        bool /* is_incognito_processs */)
 
   // Notification that the list of extensions with web extents has been updated.
   IPC_MESSAGE_CONTROL1(ViewMsg_ExtensionExtentsUpdated,
                        ViewMsg_ExtensionExtentsUpdated_Params)
-
-  // Request a tree of Accessibility data from the render process.
-  IPC_MESSAGE_ROUTED0(ViewMsg_GetAccessibilityTree)
 IPC_END_MESSAGES(View)
 
 
 //-----------------------------------------------------------------------------
 // TabContents messages
 // These are messages sent from the renderer to the browser process.
 
 IPC_BEGIN_MESSAGES(ViewHost)
   // Sent by the renderer when it is creating a new window.  The browser creates
   // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
@@ skipping 1376 matching lines @@
   IPC_MESSAGE_CONTROL2(ViewHostMsg_Geolocation_Suspend,
                        int /* render_view_id */,
                        int /* bridge_id */)
 
   // The |render_view_id| and |bridge_id| requests Geolocation service to
   // resume.
   IPC_MESSAGE_CONTROL2(ViewHostMsg_Geolocation_Resume,
                        int /* render_view_id */,
                        int /* bridge_id */)
 
-  // Send the tree of accessibility data to the browser, where it's cached
-  // in order to respond to OS accessibility queries immediately.
-  IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityTree,
-                      webkit_glue::WebAccessibility)
-
 IPC_END_MESSAGES(ViewHost)