[MC] Add the product name to the tray controller's title.

ui/message_center/cocoa/tray_controller.h

 // Copyright (c) 2013 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 UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_
 #define UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_
 
 #import <AppKit/AppKit.h>
 
 #include "base/basictypes.h"
@@ skipping 14 matching lines @@
   message_center::MessageCenterTray* tray_;  // Weak, indirectly owns this.
 
   // View controller that provides this window's content.
   base::scoped_nsobject<MCTrayViewController> viewController_;
 
   // An event monitor that listens for clicks outside the tray window to cause
   // it to close.
   id clickEventMonitor_;
 }
 
+@property(readonly, nonatomic) MCTrayViewController* viewController;
+
 // Designated initializer.
 - (id)initWithMessageCenterTray:(message_center::MessageCenterTray*)tray;
 
 // Opens the message center tray to either the right or left of the given
 // points, depending on if it will fit on screen. It will try opening to the
 // right first, but if the window does not fit on screen, it will open to the
 // left.
 - (void)showTrayAtRightOf:(NSPoint)rightPoint atLeftOf:(NSPoint)leftPoint;
 
 // Callback from MessageCenterTrayDelegate, used to update the tray content.
 - (void)onMessageCenterTrayChanged;
 
 @end
 
 #endif  // UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_