Hide notifications popups when entering fullscreen mode.

ash/system/web_notification/web_notification_tray.h

 // 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.
 
 #ifndef ASH_SYSTEM_WEB_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_
 #define ASH_SYSTEM_WEB_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_
 
 #include "ash/ash_export.h"
 #include "ash/system/tray/tray_background_view.h"
 #include "ash/system/user/login_status.h"
@@ skipping 87 matching lines @@
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
   // Overridden from MessageCenterTrayDelegate.
   virtual void OnMessageCenterTrayChanged() OVERRIDE;
   virtual bool ShowMessageCenter() OVERRIDE;
   virtual void HideMessageCenter() OVERRIDE;
   virtual bool ShowPopups() OVERRIDE;
   virtual void HidePopups() OVERRIDE;
   virtual bool ShowNotifierSettings() OVERRIDE;
+  virtual message_center::MessageCenterTray* GetMessageCenterTray() OVERRIDE;
 
   // Overridden from TrayBackgroundView.
   virtual bool IsPressed() OVERRIDE;
 
   message_center::MessageCenter* message_center();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotifications);
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotificationPopupBubble);
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest,
@@ skipping 40 matching lines @@
   // the check can be called when creating this object, so it would cause
   // flickers of the shelf from hidden to shown. See: crbug.com/181213
   bool should_block_shelf_auto_hide_;
 
   DISALLOW_COPY_AND_ASSIGN(WebNotificationTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_WEB_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_