Update avatar button to MD

chrome/browser/ui/views/frame/browser_frame.h

Index: chrome/browser/ui/views/frame/browser_frame.h
diff --git a/chrome/browser/ui/views/frame/browser_frame.h b/chrome/browser/ui/views/frame/browser_frame.h
index 4ea5b40394647f48d0934bcff7a7640f83427531..d57cae7f5574bb37148f43ce65cb9179e82047ac 100644
--- a/chrome/browser/ui/views/frame/browser_frame.h
+++ b/chrome/browser/ui/views/frame/browser_frame.h
@@ -11,6 +11,7 @@
 #include "build/build_config.h"
 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
 #include "ui/views/context_menu_controller.h"
+#include "ui/views/controls/button/menu_button.h"
 #include "ui/views/widget/widget.h"
 
 class BrowserRootView;
@@ -55,6 +56,9 @@ class BrowserFrame
   // left edge of the window. Used in our Non-Client View's Layout.
   int GetMinimizeButtonOffset() const;
 
+  // Returns the height of the minimize button.
+  int GetMinimizeButtonHeight() const;
+
   // Retrieves the bounds, in non-client view coordinates for the specified
   // TabStrip view.
   gfx::Rect GetBoundsForTabStrip(views::View* tabstrip) const;
@@ -115,7 +119,7 @@ class BrowserFrame
                               const gfx::Point& p,
                               ui::MenuSourceType source_type) override;
 
-  views::View* GetNewAvatarMenuButton();
+  views::MenuButton* GetNewAvatarMenuButton();
 
   // Returns the menu model. BrowserFrame owns the returned model.
   // Note that in multi user mode this will upon each call create a new model.