Add managed user avatar menu for mac.

chrome/browser/ui/cocoa/browser/avatar_button_controller.h

Index: chrome/browser/ui/cocoa/browser/avatar_button_controller.h
diff --git a/chrome/browser/ui/cocoa/browser/avatar_button_controller.h b/chrome/browser/ui/cocoa/browser/avatar_button_controller.h
index 776573c75a3b754b8189d0db0334fd00ddc8dc58..e3830a880aafdce9017be4683ee55ef002f7bb11 100644
--- a/chrome/browser/ui/cocoa/browser/avatar_button_controller.h
+++ b/chrome/browser/ui/cocoa/browser/avatar_button_controller.h
@@ -7,6 +7,7 @@
 
 #import <AppKit/AppKit.h>
 
+#import "base/memory/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 
 @class AvatarMenuBubbleController;
@@ -16,6 +17,10 @@ namespace AvatarButtonControllerInternal {
 class Observer;
 }
 
+namespace ui {
+class ThemeProvider;
+}
+
 // This view controller manages the button/image that sits in the top of the
 // window frame when using multi-profiles. It shows the current profile's
 // avatar, or, when in Incognito, the spy dude. With multi-profiles, clicking
@@ -29,10 +34,19 @@ class Observer;
 
   // The menu controller, if the menu is open.
   __weak AvatarMenuBubbleController* menuController_;
+
+  // The avatar button.
+  scoped_nsobject<NSButton> button_;
+
+  // The managed user avatar label. Only used for managed user profiles.
+  scoped_nsobject<NSTextField> label_;
 }
 
-// The view cast to a button.
-@property (readonly, nonatomic) NSButton* buttonView;
+// The avatar button view.
+@property(readonly, nonatomic) NSButton* buttonView;
+
+// The managed user avatar label view.
+@property(readonly, nonatomic) NSTextField* labelView;
 
 // Designated initializer.
 - (id)initWithBrowser:(Browser*)browser;
@@ -41,6 +55,10 @@ class Observer;
 // and will be resized to the frame of the button.
 - (void)setImage:(NSImage*)image;
 
+// Updates the text color and the background color of the avatar label
+// according to the chosen theme.
+- (void)updateColors:(ui::ThemeProvider*)themeProvider;
+
 // Shows the avatar bubble.
 - (void)showAvatarBubble;