Impl thread smooth scrolling.

cc/layers/layer_impl.cc

 // Copyright 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 "cc/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
 #include "cc/animation/animation_registrar.h"
@@ skipping 57 matching lines @@
       num_dependents_need_push_properties_(0),
       sorting_context_id_(0),
       current_draw_mode_(DRAW_MODE_NONE) {
   DCHECK_GT(layer_id_, 0);
   DCHECK(layer_tree_impl_);
   layer_tree_impl_->RegisterLayer(this);
   AnimationRegistrar* registrar = layer_tree_impl_->animationRegistrar();
   layer_animation_controller_ =
       registrar->GetAnimationControllerForId(layer_id_);
   layer_animation_controller_->AddValueObserver(this);
-  if (IsActive())
+  if (IsActive()) {
     layer_animation_controller_->set_value_provider(this);
+    layer_animation_controller_->set_layer_animation_delegate(this);
+  }
   SetNeedsPushProperties();
 }
 
 LayerImpl::~LayerImpl() {
   DCHECK_EQ(DRAW_MODE_NONE, current_draw_mode_);
 
   layer_animation_controller_->RemoveValueObserver(this);
   layer_animation_controller_->remove_value_provider(this);
+  layer_animation_controller_->remove_layer_animation_delegate(this);
 
   if (!copy_requests_.empty() && layer_tree_impl_->IsActiveTree())
     layer_tree_impl()->RemoveLayerWithCopyOutputRequest(this);
   layer_tree_impl_->UnregisterLayer(this);
 
   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
       TRACE_DISABLED_BY_DEFAULT("cc.debug"), "cc::LayerImpl", this);
 }
 
 void LayerImpl::AddChild(scoped_ptr<LayerImpl> child) {
@@ skipping 1386 matching lines @@
 
 scoped_ptr<base::Value> LayerImpl::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   AsValueInto(state.get());
   return state.PassAs<base::Value>();
 }
 
 void LayerImpl::RunMicroBenchmark(MicroBenchmarkImpl* benchmark) {
   benchmark->RunOnLayer(this);
 }
+
+void LayerImpl::NotifyAnimationFinished(
+    base::TimeTicks monotonic_time,
+    Animation::TargetProperty target_property) {
+  if (target_property == Animation::ScrollOffset)
+    layer_tree_impl_->InputScrollAnimationFinished();
+}
+
 }  // namespace cc