Stop painting when receiving delegated frame

ui/views/bubble/tray_bubble_view.cc

 // Copyright (c) 2012 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.
 
 #include "ui/views/bubble/tray_bubble_view.h"
 
 #include <algorithm>
 
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 166 matching lines @@
 // alternate solutions if the TrayBubbleView is needed there in the future.
 class TrayBubbleContentMask : public ui::LayerDelegate {
  public:
   explicit TrayBubbleContentMask(int corner_radius);
   virtual ~TrayBubbleContentMask();
 
   ui::Layer* layer() { return &layer_; }
 
   // Overridden from LayerDelegate.
   virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnDelegatedFrameDamage(
+      const gfx::Rect& damage_rect_in_dip) OVERRIDE {}
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
   virtual base::Closure PrepareForLayerBoundsChange() OVERRIDE;
 
  private:
   ui::Layer layer_;
   SkScalar corner_radius_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayBubbleContentMask);
 };
 
@@ skipping 302 matching lines @@
 void TrayBubbleView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.is_add && details.child == this) {
     details.parent->SetPaintToLayer(true);
     details.parent->SetFillsBoundsOpaquely(true);
     details.parent->layer()->SetMasksToBounds(true);
   }
 }
 
 }  // namespace views