[Mac/multiprofile] "Customize User..." should edit the currently active profile

chrome/browser/profiles/avatar_menu_model.h

Index: chrome/browser/profiles/avatar_menu_model.h
diff --git a/chrome/browser/profiles/avatar_menu_model.h b/chrome/browser/profiles/avatar_menu_model.h
index b98bee3a1db50a8c49b4643f0817ec6bcca1d627..73f75de2c8551bf4758c8fe562f576417f170aa1 100644
--- a/chrome/browser/profiles/avatar_menu_model.h
+++ b/chrome/browser/profiles/avatar_menu_model.h
@@ -69,6 +69,9 @@ class AvatarMenuModel : public content::NotificationObserver {
   // Gets the number of profiles.
   size_t GetNumberOfItems();
 
+  // Returns the index of the active profile.
+  size_t GetActiveProfileIndex();
+
   // Gets the an Item at a specified index.
   const Item& GetItemAt(size_t index);