[Mac] Redesign of the avatar menu button

chrome/browser/ui/cocoa/browser/avatar_base_controller.h

+// Copyright 2014 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_BASE_CONTROLLER_H_
+#define CHROME_BROWSER_UI_COCOA_BROWSER_AVATAR_BASE_CONTROLLER_H_
+
+#import <AppKit/AppKit.h>
+
+#import "base/mac/scoped_nsobject.h"
+#include "base/memory/scoped_ptr.h"
+
+@class BaseBubbleController;
+class Browser;
+class ProfileInfoUpdateObserver;
+
+// This view controller manages the button that sits in the top of the
+// window frame when using multi-profiles, and shows information about the
+// current profile. Clicking the button will open the profile menu.
+@interface AvatarBaseController : NSViewController {
+ @protected
+  Browser* browser_;
+
+  // The avatar button. Child classes are responsible for implementing it.
+  base::scoped_nsobject<NSButton> button_;
+
+ @private
+  // The menu controller, if the menu is open.
+  BaseBubbleController* menuController_;
+
+  // Observer that listens for updates to the ProfileInfoCache.
+  scoped_ptr<ProfileInfoUpdateObserver> profileInfoObserver_;
+}
+
+// The avatar button view.
+@property(readonly, nonatomic) NSButton* buttonView;
+
+// Designated initializer.
+- (id)initWithBrowser:(Browser*)browser;
+
+// Shows the avatar bubble.
+- (void)showAvatarBubble:(NSView*)anchor;
+
+@end
+
+@interface AvatarBaseController (ExposedForTesting)
+- (BaseBubbleController*)menuController;
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_BROWSER_AVATAR_BASE_CONTROLLER_H_