CC Animations: Make ui::LayerAnimator a LayerAnimationEventObserver (instead of ui::Layer)

ui/compositor/test/test_layer_animation_delegate.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/compositor/layer.h"
 #include "ui/compositor/test/test_layer_animation_delegate.h"
 
 namespace ui {
 
 TestLayerAnimationDelegate::TestLayerAnimationDelegate()
     : opacity_(1.0f),
       visibility_(true),
       brightness_(0.0f),
       grayscale_(0.0f),
       color_(SK_ColorBLACK) {
+  CreateCcLayer();
 }
 
 TestLayerAnimationDelegate::TestLayerAnimationDelegate(
     const LayerAnimationDelegate& other)
     : bounds_(other.GetBoundsForAnimation()),
       transform_(other.GetTransformForAnimation()),
       opacity_(other.GetOpacityForAnimation()),
       visibility_(other.GetVisibilityForAnimation()),
       color_(SK_ColorBLACK) {
+  CreateCcLayer();
 }
 
 TestLayerAnimationDelegate::~TestLayerAnimationDelegate() {
 }
 
 void TestLayerAnimationDelegate::SetBoundsFromAnimation(
     const gfx::Rect& bounds) {
   bounds_ = bounds;
 }
 
@@ skipping 62 matching lines @@
 }
 
 void TestLayerAnimationDelegate::RemoveThreadedAnimation(int animation_id) {
 }
 
 LayerAnimatorCollection*
 TestLayerAnimationDelegate::GetLayerAnimatorCollection() {
   return NULL;
 }
 
+cc::Layer* TestLayerAnimationDelegate::GetCcLayer() const {
+  return cc_layer_.get();
+}
+
+void TestLayerAnimationDelegate::CreateCcLayer() {
+  cc_layer_ = cc::Layer::Create(ui::Layer::UILayerSettings());
+}
+
 }  // namespace ui