Stop painting when receiving delegated frame

athena/wm/overview_toolbar.cc

 // Copyright 2014 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 "athena/wm/overview_toolbar.h"
 
 #include "athena/resources/grit/athena_resources.h"
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ skipping 63 matching lines @@
                                       SK_ColorWHITE,
                                       gfx::Rect(0,
                                                 kActionButtonImageSize,
                                                 kActionButtonImageSize,
                                                 kActionButtonTextSize),
                                       0,
                                       gfx::Canvas::TEXT_ALIGN_CENTER,
                                       shadow);
   }
 
+  virtual void OnDelegatedFrameDamage(
+      const gfx::Rect& damage_rect_in_dip) OVERRIDE {}
+
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {}
   virtual base::Closure PrepareForLayerBoundsChange() OVERRIDE {
     return base::Closure();
   }
 
   int resource_id_;
   base::string16 label_;
   scoped_ptr<ui::Layer> layer_;
 
   DISALLOW_COPY_AND_ASSIGN(ActionButton);
@@ skipping 93 matching lines @@
 
 void OverviewToolbar::TransformButton(ActionButton* button) {
   ui::ScopedLayerAnimationSettings split_settings(
       button->layer()->GetAnimator());
   split_settings.SetTweenType(gfx::Tween::SMOOTH_IN_OUT);
   button->layer()->SetTransform(ComputeTransformFor(button));
   button->layer()->SetOpacity(shown_ ? 1 : 0);
 }
 
 }  // namespace athena