Update avatar button to MD

chrome/browser/ui/views/frame/opaque_browser_frame_view.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 CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 27 matching lines @@
   // Constructs a non-client view for an BrowserFrame.
   OpaqueBrowserFrameView(BrowserFrame* frame, BrowserView* browser_view);
   ~OpaqueBrowserFrameView() override;
 
   // BrowserNonClientFrameView:
   gfx::Rect GetBoundsForTabStrip(views::View* tabstrip) const override;
   int GetTopInset(bool restored) const override;
   int GetThemeBackgroundXInset() const override;
   void UpdateThrobber(bool running) override;
   gfx::Size GetMinimumSize() const override;
-  views::View* GetProfileSwitcherView() const override;
+  views::MenuButton* GetProfileSwitcherButton() const override;
 
   // views::NonClientFrameView:
   gfx::Rect GetBoundsForClientView() const override;
   gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const override;
   int NonClientHitTest(const gfx::Point& point) override;
   void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask) override;
   void ResetWindowControls() override;
   void UpdateWindowIcon() override;
   void UpdateWindowTitle() override;
@@ skipping 111 matching lines @@
   // Background painter for the window frame.
   std::unique_ptr<views::FrameBackground> frame_background_;
 
   // Observer that handles platform dependent configuration.
   std::unique_ptr<OpaqueBrowserFrameViewPlatformSpecific> platform_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(OpaqueBrowserFrameView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_