Thread ui opacity animations

ash/rotator/screen_rotation.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 "ash/rotator/screen_rotation.h"
 
 #include "base/debug/trace_event.h"
 #include "base/time.h"
 #include "ui/compositor/layer_animation_delegate.h"
 #include "ui/gfx/interpolated_transform.h"
@@ skipping 93 matching lines @@
 bool ScreenRotation::OnProgress(double t,
                                 ui::LayerAnimationDelegate* delegate) {
   delegate->SetTransformFromAnimation(interpolated_transform_->Interpolate(t));
   return true;
 }
 
 void ScreenRotation::OnGetTarget(TargetValue* target) const {
   target->transform = interpolated_transform_->Interpolate(1.0);
 }
 
-void ScreenRotation::OnAbort() {
+void ScreenRotation::OnAbort(ui::LayerAnimationDelegate* delegate) {
 }
 
 // static
 const ui::LayerAnimationElement::AnimatableProperties&
 ScreenRotation::GetProperties() {
   static ui::LayerAnimationElement::AnimatableProperties properties;
   if (properties.empty())
     properties.insert(ui::LayerAnimationElement::TRANSFORM);
   return properties;
 }
 
 }  // namespace ash