Fix rtl shelf overflow bubble

ui/views/bubble/bubble_dialog_delegate.h

Index: ui/views/bubble/bubble_dialog_delegate.h
diff --git a/ui/views/bubble/bubble_dialog_delegate.h b/ui/views/bubble/bubble_dialog_delegate.h
index 13c576efd7ee64830ca94f295816832671fee665..b0dc455df0f5f4aa57624424d26e6e79987a3764 100644
--- a/ui/views/bubble/bubble_dialog_delegate.h
+++ b/ui/views/bubble/bubble_dialog_delegate.h
@@ -67,6 +67,8 @@ class VIEWS_EXPORT BubbleDialogDelegateView : public DialogDelegateView,
   BubbleBorder::Arrow arrow() const { return arrow_; }
   void set_arrow(BubbleBorder::Arrow arrow) { arrow_ = arrow; }
 
+  void set_mirror_arrow_in_rtl(bool mirror) { mirror_arrow_in_rtl_ = mirror; }
+
   BubbleBorder::Shadow shadow() const { return shadow_; }
   void set_shadow(BubbleBorder::Shadow shadow) { shadow_ = shadow; }
 
@@ -173,6 +175,9 @@ class VIEWS_EXPORT BubbleDialogDelegateView : public DialogDelegateView,
   // The arrow's location on the bubble.
   BubbleBorder::Arrow arrow_;
 
+  // Automatically mirror the arrow in RTL layout.
+  bool mirror_arrow_in_rtl_;
+
   // Bubble border shadow to use.
   BubbleBorder::Shadow shadow_;