mash: Convert system tray logout button to wm common types

chrome/browser/ui/views/profiles/user_manager_view.cc

Index: chrome/browser/ui/views/profiles/user_manager_view.cc
diff --git a/chrome/browser/ui/views/profiles/user_manager_view.cc b/chrome/browser/ui/views/profiles/user_manager_view.cc
index a494f6f1e348695c9cb3327ad4bf6bb88048b8f1..8f9374979c0ffe71f73b0f1eb923c6b13047f1fa 100644
--- a/chrome/browser/ui/views/profiles/user_manager_view.cc
+++ b/chrome/browser/ui/views/profiles/user_manager_view.cc
@@ -335,7 +335,9 @@ void UserManagerView::Init(Profile* system_profile, const GURL& url) {
     }
   }
 
-  DialogDelegate::CreateDialogWidgetWithBounds(this, NULL, NULL, bounds);
+  views::Widget::InitParams params =
+      GetDialogWidgetInitParams(this, nullptr, nullptr, bounds);
+  (new views::Widget)->Init(params);
 
   // Since the User Manager can be the only top level window, we don't
   // want to accidentally quit all of Chrome if the user is just trying to