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

chrome/browser/renderer_host/render_view_host.cc

 // 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.
 
 #include "chrome/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 822 matching lines @@
     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestNotificationPermission,
                         OnRequestNotificationPermission)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ExtensionRequest, OnExtensionRequest)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionChanged, OnMsgSelectionChanged)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ExtensionPostMessage,
                         OnExtensionPostMessage)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AccessibilityFocusChange,
                         OnAccessibilityFocusChange)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AccessibilityObjectStateChange,
                         OnAccessibilityObjectStateChange)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_AccessibilityObjectChildrenChange,
+                        OnAccessibilityObjectChildrenChange)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OnCSSInserted, OnCSSInserted)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PageContents, OnPageContents)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PageTranslated, OnPageTranslated)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ContentBlocked, OnContentBlocked)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AppCacheAccessed, OnAppCacheAccessed)
     IPC_MESSAGE_HANDLER(ViewHostMsg_WebDatabaseAccessed, OnWebDatabaseAccessed)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AccessibilityTree, OnAccessibilityTree)
     IPC_MESSAGE_HANDLER(ViewHostMsg_FocusedNodeChanged, OnMsgFocusedNodeChanged)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SetDisplayingPDFContent,
                         OnSetDisplayingPDFContent)
@@ skipping 1105 matching lines @@
 }
 
 void RenderViewHost::OnAccessibilityFocusChange(int acc_obj_id) {
   view()->OnAccessibilityFocusChange(acc_obj_id);
 }
 
 void RenderViewHost::OnAccessibilityObjectStateChange(int acc_obj_id) {
   view()->OnAccessibilityObjectStateChange(acc_obj_id);
 }
 
+void RenderViewHost::OnAccessibilityObjectChildrenChange(
+    const std::vector<webkit_glue::WebAccessibility>& acc_changes) {
+  view()->OnAccessibilityObjectChildrenChange(acc_changes);
+
+  if (acc_changes.size() > 0) {
+    NotificationService::current()->Notify(
+        NotificationType::RENDER_VIEW_HOST_ACCESSIBILITY_TREE_UPDATED,
+        Source<RenderViewHost>(this),
+        NotificationService::NoDetails());
+  }
+}
+
 void RenderViewHost::OnAccessibilityTree(
     const webkit_glue::WebAccessibility& tree) {
   if (view())
     view()->UpdateAccessibilityTree(tree);
 
   NotificationService::current()->Notify(
       NotificationType::RENDER_VIEW_HOST_ACCESSIBILITY_TREE_UPDATED,
       Source<RenderViewHost>(this),
       NotificationService::NoDetails());
 }
@@ skipping 52 matching lines @@
   RenderViewHostDelegate::ContentSettings* content_settings_delegate =
       delegate_->GetContentSettingsDelegate();
   if (content_settings_delegate)
     content_settings_delegate->OnWebDatabaseAccessed(
         url, name, display_name, estimated_size, blocked_by_policy);
 }
 
 void RenderViewHost::OnSetDisplayingPDFContent() {
   delegate_->SetDisplayingPDFContent();
 }