Update browser cache of accessibility tree on renderer sub-tree changes....

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 964 matching lines @@
 
   // Relay a request from assistive technology to set focus to a given node.
   IPC_MESSAGE_ROUTED1(ViewMsg_SetAccessibilityFocus,
                       int /* object id */)
 
   // Relay a request from assistive technology to perform the default action
   // on a given node.
   IPC_MESSAGE_ROUTED1(ViewMsg_AccessibilityDoDefaultAction,
                       int /* object id */)
 
+  // Tells the render view that a ViewHostMsg_AccessibilityObjectChildrenChange
+  // message was processed, and the render view host is ready for additional
+  // children change messages.
+  IPC_MESSAGE_ROUTED0(ViewMsg_AccessibilityObjectChildrenChange_ACK)
+
   // Relay a speech recognition result, either partial or final.
   IPC_MESSAGE_ROUTED2(ViewMsg_SpeechInput_SetRecognitionResult,
                       int /* request id */,
                       string16 /* result */)
 
   // Indicate that speech recognizer has stopped recording and started
   // recognition.
   IPC_MESSAGE_ROUTED1(ViewMsg_SpeechInput_RecordingComplete,
                       int /* request id */)
 
@@ skipping 1193 matching lines @@
   IPC_MESSAGE_CONTROL1(ViewHostMsg_ExtensionCloseChannel,
                        int /* port_id */)
 
   // Sent as a result of a focus change in the renderer (if accessibility is
   // enabled), to notify the browser side that its accessibility focus needs to
   // change as well. Takes the id of the accessibility object that now has
   // focus.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityFocusChange,
                       int /* accessibility object id */)
 
-  // Send as a result of a state change in the renderer (if accessibility is
+  // Sent as a result of a state change in the renderer (if accessibility is
   // enabled), to notify the browser side. Takes the id of the accessibility
   // object that had a state change
   IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityObjectStateChange,
                       int /* accessibility object id */)
 
+  // Sent by the renderer as a result of a accessibility node children change.
+  // The browser responds with a ViewMsg_AccessibilityObjectChildrenChange_ACK.
+  IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityObjectChildrenChange,
+                      std::vector<webkit_glue::WebAccessibility>)
+
+  // 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)
+
   // Message sent from the renderer to the browser to request that the browser
   // close all sockets.  Used for debugging/testing.
   IPC_MESSAGE_CONTROL0(ViewHostMsg_CloseCurrentConnections)
 
   // Message sent from the renderer to the browser to request that the browser
   // enable or disable the cache.  Used for debugging/testing.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_SetCacheMode,
                        bool /* enabled */)
 
   // Message sent from the renderer to the browser to request that the browser
@@ skipping 199 matching lines @@
                               string16, /* name */
                               bool, /* success */
                               int32 /* idb_index_id */)
 
   // WebIDBObjectStore::removeIndex() message.
   IPC_MESSAGE_CONTROL3(ViewHostMsg_IDBObjectStoreRemoveIndex,
                        int32, /* idb_object_store_id */
                        int32, /* response_id */
                        string16 /* name */)
 
-   // WebIDBObjectStore::openCursor() message.
-   IPC_MESSAGE_CONTROL1(ViewHostMsg_IDBObjectStoreOpenCursor,
-                        ViewHostMsg_IDBObjectStoreOpenCursor_Params)
+  // WebIDBObjectStore::openCursor() message.
+  IPC_MESSAGE_CONTROL1(ViewHostMsg_IDBObjectStoreOpenCursor,
+                       ViewHostMsg_IDBObjectStoreOpenCursor_Params)
 
   // WebIDBObjectStore::~WebIDBObjectStore() message.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_IDBObjectStoreDestroyed,
                        int32 /* idb_object_store_id */)
 
   // WebIDBDatabase::~WebIDBCursor() message.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_IDBCursorDestroyed,
                        int32 /* idb_cursor_id */)
 
   // WebIDBTransaction::~WebIDBTransaction() message.
@@ skipping 198 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)
-
   // Notifies the TabContents that the content being displayed is PDF.
   // This allows the browser to handle things such as zooming differently.
   IPC_MESSAGE_ROUTED0(ViewHostMsg_SetDisplayingPDFContent)
 
   // Requests the speech input service to start speech recognition on behalf of
   // the given |render_view_id|.
   IPC_MESSAGE_CONTROL2(ViewHostMsg_SpeechInput_StartRecognition,
                        int /* render_view_id */,
                        int /* request id */)
 
@@ skipping 25 matching lines @@
 
 //-----------------------------------------------------------------------------
   // FileSystem API messages
   // These are messages sent from the renderer to the browser process.
 
   // WebFrameClient::openFileSystem() message.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_OpenFileSystemRequest,
                        ViewHostMsg_OpenFileSystemRequest_Params)
 
 IPC_END_MESSAGES(ViewHost)