Don't PushProperties every commit for animating layers

This removes the need to PushProperties every commit during an animation.
Instead, a single PushProperties is needed whenever there are animations
waiting for deletion.

This also removes LayerAnimationController::set_force_sync, which no
longer had any non-test callers and wasn't actually needed by its test
callers.

BUG=259088

Review URL: https://codereview.chromium.org/60083018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235845 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 10 insertions, 4 deletions

diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index 8d07366..e0ffb5c 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -927,9 +927,7 @@ void Layer::PushPropertiesTo(LayerImpl* layer) {
   stacking_order_changed_ = false;
   update_rect_ = gfx::RectF();
 
-  // Animating layers require further push properties to clean up the animation.
-  // crbug.com/259088
-  needs_push_properties_ = layer_animation_controller_->has_any_animation();
+  needs_push_properties_ = false;
   num_dependents_need_push_properties_ = 0;
 }
 
@@ -998,6 +996,11 @@ void Layer::OnTransformAnimated(const gfx::Transform& transform) {
   transform_ = transform;
 }
 
+void Layer::OnAnimationWaitingForDeletion() {
+  // Animations are only deleted during PushProperties.
+  SetNeedsPushProperties();
+}
+
 bool Layer::IsActive() const {
   return true;
 }
@@ -1027,7 +1030,6 @@ void Layer::SetLayerAnimationControllerForTest(
     scoped_refptr<LayerAnimationController> controller) {
   layer_animation_controller_->RemoveValueObserver(this);
   layer_animation_controller_ = controller;
-  layer_animation_controller_->set_force_sync();
   layer_animation_controller_->AddValueObserver(this);
   SetNeedsCommit();
 }
diff --git a/cc/layers/layer.h b/cc/layers/layer.h
index 889e09ba..b552a35 100644
--- a/cc/layers/layer.h
+++ b/cc/layers/layer.h
@@ -522,6 +522,7 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
   virtual void OnFilterAnimated(const FilterOperations& filters) OVERRIDE;
   virtual void OnOpacityAnimated(float opacity) OVERRIDE;
   virtual void OnTransformAnimated(const gfx::Transform& transform) OVERRIDE;
+  virtual void OnAnimationWaitingForDeletion() OVERRIDE;
   virtual bool IsActive() const OVERRIDE;
 
   LayerList children_;
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index 1033b61..99f9502 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -694,6 +694,8 @@ void LayerImpl::OnTransformAnimated(const gfx::Transform& transform) {
   SetTransform(transform);
 }
 
+void LayerImpl::OnAnimationWaitingForDeletion() {}
+
 bool LayerImpl::IsActive() const {
   return layer_tree_impl_->IsActiveTree();
 }
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index e774dfa..6d06b6d2 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -76,6 +76,7 @@ class CC_EXPORT LayerImpl : LayerAnimationValueObserver {
   virtual void OnFilterAnimated(const FilterOperations& filters) OVERRIDE;
   virtual void OnOpacityAnimated(float opacity) OVERRIDE;
   virtual void OnTransformAnimated(const gfx::Transform& transform) OVERRIDE;
+  virtual void OnAnimationWaitingForDeletion() OVERRIDE;
   virtual bool IsActive() const OVERRIDE;
 
   // Tree structure.