Mac: Use cross-platform menu model for profile button.

chrome/browser/ui/cocoa/profile_menu_button.h

Index: chrome/browser/ui/cocoa/profile_menu_button.h
diff --git a/chrome/browser/ui/cocoa/profile_menu_button.h b/chrome/browser/ui/cocoa/profile_menu_button.h
index ca5dc8277e7a1c75c6608aebd6caf530eae61e56..ac8d4914690a840a038061b9e96280bef0b0af61 100644
--- a/chrome/browser/ui/cocoa/profile_menu_button.h
+++ b/chrome/browser/ui/cocoa/profile_menu_button.h
@@ -9,6 +9,10 @@
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
+#include "base/memory/scoped_ptr.h"
+#import "chrome/browser/ui/cocoa/menu_controller.h"
+
+class ProfileMenuModel;
 
 // PopUp button that shows the multiprofile menu.
 @interface ProfileMenuButton : NSPopUpButton {
@@ -20,6 +24,10 @@
   // Cache the various button states when creating |cachedTabImage_|. If
   // any of these states change then the cached image is invalidated.
   BOOL cachedTabImageIsPressed_;
+
+  // The popup menu and its model.
+  scoped_nsobject<MenuController> menu_;
+  scoped_ptr<ProfileMenuModel> profile_menu_model_;
 }
 
 @property(assign,nonatomic) BOOL shouldShowProfileDisplayName;