Add shortcut to show avatar menu

chrome/browser/ui/cocoa/browser/avatar_button_controller.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_BROWSER_AVATAR_BUTTON_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_AVATAR_BUTTON_CONTROLLER_H_
 #pragma once
 
 #import <AppKit/AppKit.h>
 
@@ skipping 24 matching lines @@
 // The view cast to a button.
 @property (readonly, nonatomic) NSButton* buttonView;
 
 // Designated initializer.
 - (id)initWithBrowser:(Browser*)browser;
 
 // Sets the image to be used as the avatar. This will have a drop shadow applied
 // and will be resized to the frame of the button.
 - (void)setImage:(NSImage*)image;
 
+// Shows the avatar bubble.
+- (void)showAvatarBubble;
+
 @end
 
 @interface AvatarButtonController (ExposedForTesting)
 - (AvatarMenuBubbleController*)menuController;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_AVATAR_BUTTON_CONTROLLER_H_