Fix rtl shelf overflow bubble

ui/views/bubble/bubble_dialog_delegate.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_BUBBLE_BUBBLE_DIALOG_DELEGATE_H_
 #define UI_VIEWS_BUBBLE_BUBBLE_DIALOG_DELEGATE_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "ui/views/bubble/bubble_border.h"
@@ skipping 48 matching lines @@
 
   View* GetAnchorView() const;
   Widget* anchor_widget() const { return anchor_widget_; }
 
   // The anchor rect is used in the absence of an assigned anchor view.
   const gfx::Rect& anchor_rect() const { return anchor_rect_; }
 
   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; }
 
   SkColor color() const { return color_; }
   void set_color(SkColor color) {
     color_ = color;
     color_explicitly_set_ = true;
   }
 
   const gfx::Insets& margins() const { return margins_; }
@@ skipping 86 matching lines @@
   // it from there. It will make sure that the view is still valid.
   const int anchor_view_storage_id_;
   Widget* anchor_widget_;
 
   // The anchor rect used in the absence of an anchor view.
   mutable gfx::Rect anchor_rect_;
 
   // 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_;
 
   // The background color of the bubble; and flag for when it's explicitly set.
   SkColor color_;
   bool color_explicitly_set_;
 
   // The margins between the content and the inside of the border.
   gfx::Insets margins_;
 
@@ skipping 10 matching lines @@
 
   // Parent native window of the bubble.
   gfx::NativeView parent_window_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleDialogDelegateView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_BUBBLE_BUBBLE_DELEGATE2_H_