Add a button to exit managed mode.

chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h

Index: chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h
diff --git a/chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h b/chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h
index a76a4983323c90d322fed3930e0f266d4e6237d8..330c30aa70bb8657f154c080371f2c6ef32817bb 100644
--- a/chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h
+++ b/chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.h
@@ -14,7 +14,6 @@
 #import "chrome/browser/ui/cocoa/tracking_area.h"
 
 class AvatarMenuModel;
-class AvatarMenuModelObserver;
 class Browser;
 @class HoverImageButton;
 
@@ -25,9 +24,6 @@ class Browser;
   // The model that contains the data from the backend.
   scoped_ptr<AvatarMenuModel> model_;
 
-  // Observer for changes to the model.
-  scoped_ptr<AvatarMenuModelObserver> bridge_;
-
   // Array of the below view controllers.
   scoped_nsobject<NSMutableArray> items_;
 }
@@ -127,7 +123,6 @@ class Browser;
 
 @interface AvatarMenuBubbleController (ExposedForTesting)
 - (id)initWithModel:(AvatarMenuModel*)model
-             bridge:(AvatarMenuModelObserver*)bridge
        parentWindow:(NSWindow*)parent
          anchoredAt:(NSPoint)point;
 - (void)performLayout;