Convert location bar bubble delegates to bubble dialog delegates

ui/views/widget/widget_delegate.h

Index: ui/views/widget/widget_delegate.h
diff --git a/ui/views/widget/widget_delegate.h b/ui/views/widget/widget_delegate.h
index 660313d1648bb813b44454bb514f479aa0b696a6..0ec021505b65fe3536d48cf946fe2506bddf7947 100644
--- a/ui/views/widget/widget_delegate.h
+++ b/ui/views/widget/widget_delegate.h
@@ -19,6 +19,7 @@ class Rect;
 }
 
 namespace views {
+class BubbleDialogDelegateView;
 class BubbleDelegateView;
 class ClientView;
 class DialogDelegate;
@@ -51,6 +52,7 @@ class VIEWS_EXPORT WidgetDelegate {
   virtual View* GetInitiallyFocusedView();
 
   virtual BubbleDelegateView* AsBubbleDelegate();
+  virtual BubbleDialogDelegateView* AsBubbleDialogDelegate();
   virtual DialogDelegate* AsDialogDelegate();
 
   // Returns true if the window can be resized.