Rewrite renderer accessibility to not use WebAccessibilityCache.

content/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2011 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 "content/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1288 matching lines @@
     const std::vector<ViewHostMsg_AccessibilityNotification_Params>& params) {
   if (view() && !is_swapped_out_)
     view()->OnAccessibilityNotifications(params);
 
   if (!params.empty()) {
     for (unsigned i = 0; i < params.size(); i++) {
       const ViewHostMsg_AccessibilityNotification_Params& param = params[i];
 
       if (param.notification_type == ViewHostMsg_AccEvent::LOAD_COMPLETE &&
           save_accessibility_tree_for_testing_) {
-        accessibility_tree_ = param.acc_obj;
+        accessibility_tree_ = param.acc_tree;
       }
     }
 
     NotificationService::current()->Notify(
         content::NOTIFICATION_RENDER_VIEW_HOST_ACCESSIBILITY_TREE_UPDATED,
         Source<RenderViewHost>(this),
         NotificationService::NoDetails());
   }
 
   Send(new ViewMsg_AccessibilityNotifications_ACK(routing_id()));
@@ skipping 82 matching lines @@
 void RenderViewHost::OnRunFileChooser(
     const ViewHostMsg_RunFileChooser_Params& params) {
   delegate_->RunFileChooser(this, params);
 }
 
 void RenderViewHost::OnWebUISend(const GURL& source_url,
                                  const std::string& name,
                                  const base::ListValue& args) {
   delegate_->WebUISend(this, source_url, name, args);
 }
-