[Mac] Redesign of the avatar menu button

chrome/browser/ui/cocoa/browser_window_controller.h

Index: chrome/browser/ui/cocoa/browser_window_controller.h
diff --git a/chrome/browser/ui/cocoa/browser_window_controller.h b/chrome/browser/ui/cocoa/browser_window_controller.h
index 28ee5f71ed9bfaef7ae6ef3211b6c68ce4026f6f..eaa997e925928546a8e6dab7a2402f087ca89931 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller.h
+++ b/chrome/browser/ui/cocoa/browser_window_controller.h
@@ -104,8 +104,12 @@ class WebContents;
   NSInteger currentZoomStepDelta_;
 
   // The view controller that manages the incognito badge or the multi-profile
-  // avatar icon. The view is always in the view hierarchy, but will be hidden
-  // unless it's appropriate to show it.
+  // avatar button. Depending on whether the --new-profile-management flag is
+  // used, the multi-profile button can either be the avatar's icon badge or a
+  // button with the profile's name. If the flag is used, the button is always
+  // shown, otherwise the view will always be in the view hierarchy but will
+  // be hidden unless it's appropriate to show it (i.e. if there's more than
+  // one profile).
   base::scoped_nsobject<AvatarButtonController> avatarButtonController_;
 
   // Lazily created view which draws the background for the floating set of bars
@@ -264,6 +268,9 @@ class WebContents;
 // user's profile avatar.
 - (BOOL)shouldShowAvatar;
 
+// Whether or not to show the new avatar button used by --new-profile-maagement.
+- (BOOL)shouldUseNewAvatarButton;
+
 - (BOOL)isBookmarkBarVisible;
 
 // Returns YES if the bookmark bar is currently animating.