Fire accessibility focus/blur events on root web document.

content/browser/renderer_host/render_widget_host_view_aura.cc

 // Copyright (c) 2012 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_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 3098 matching lines @@
       input_method->SetFocusedTextInputClient(this);
       host_->SetInputMethodActive(input_method->IsActive());
 
       // Often the application can set focus to the view in response to a key
       // down. However the following char event shouldn't be sent to the web
       // page.
       host_->SuppressNextCharEvents();
     } else {
       host_->SetInputMethodActive(false);
     }
+
+    BrowserAccessibilityManager* manager = GetBrowserAccessibilityManager();
+    if (manager)
+      manager->OnWindowFocused();
   } else if (window_ == lost_focus) {
     host_->SetActive(false);
     host_->Blur();
 
     DetachFromInputMethod();
     host_->SetInputMethodActive(false);
 
     if (touch_editing_client_)
       touch_editing_client_->EndTouchEditing(false);
 
+    BrowserAccessibilityManager* manager = GetBrowserAccessibilityManager();
+    if (manager)
+      manager->OnWindowBlurred();
+
     // If we lose the focus while fullscreen, close the window; Pepper Flash
     // won't do it for us (unlike NPAPI Flash). However, we do not close the
     // window if we lose the focus to a window on another display.
     gfx::Screen* screen = gfx::Screen::GetScreenFor(window_);
     bool focusing_other_display =
         gained_focus && screen->GetNumDisplays() > 1 &&
         (screen->GetDisplayNearestWindow(window_).id() !=
          screen->GetDisplayNearestWindow(gained_focus).id());
     if (is_fullscreen_ && !in_shutdown_ && !focusing_other_display) {
 #if defined(OS_WIN)
@@ skipping 544 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content