Fix a few lingering bugs in BrowserAccessibilityManager and BrowserAccessibilityCocoa.

chrome/browser/renderer_host/render_widget_host_view_mac.mm

 // 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 <QuartzCore/QuartzCore.h>
 
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 1042 matching lines @@
 void RenderWidgetHostViewMac::SetBackground(const SkBitmap& background) {
   RenderWidgetHostView::SetBackground(background);
   if (render_widget_host_)
     render_widget_host_->Send(new ViewMsg_SetBackground(
         render_widget_host_->routing_id(), background));
 }
 
 void RenderWidgetHostViewMac::OnAccessibilityNotifications(
     const std::vector<ViewHostMsg_AccessibilityNotification_Params>& params) {
   if (!browser_accessibility_manager_.get()) {
-    // Use empty document to process notifications
-    webkit_glue::WebAccessibility empty_document;
-    empty_document.role = WebAccessibility::ROLE_WEB_AREA;
-    empty_document.state = 0;
-    browser_accessibility_manager_.reset(
-        BrowserAccessibilityManager::Create(cocoa_view_, empty_document, NULL));
+    BrowserAccessibilityManager::CreateEmptyDocument(
+        cocoa_view_, static_cast<WebAccessibility::State>(0), NULL);
   }
   browser_accessibility_manager_->OnAccessibilityNotifications(params);
 }
 
 void RenderWidgetHostViewMac::SetTextInputActive(bool active) {
   if (active) {
     if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
       EnablePasswordInput();
     else
       DisablePasswordInput();
@@ skipping 1548 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end