Ref count layer animation controllers.

With this patch we accomplish the following: 
1. layer animation controllers are ref counted (so they can be shared by the two impl trees) 
2. the layer tree hosts now own a list of active animation controllers. This allows for a couple of nice things 
__a. Ticking the animation controllers no longer requires a tree walk 
__b. We will be able to support ticking of animation controllers for layers that are not yet added to the layer tree. (Support coming in a future patch). 
3. animation controllers register and unregister themselves from their respective layer tree host's list when they have an animation to tick.

R=nduca@chromium.org,enne@chromium.org
BUG=162111


Review URL: https://chromiumcodereview.appspot.com/11598005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@174043 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 19 deletions

diff --git a/cc/test/animation_test_common.cc b/cc/test/animation_test_common.cc
index 9920751..258a266 100644
--- a/cc/test/animation_test_common.cc
+++ b/cc/test/animation_test_common.cc
@@ -146,40 +146,25 @@ float FakeFloatTransition::getValue(double time) const
     return (1 - time) * m_from + time * m_to;
 }
 
-FakeLayerAnimationControllerClient::FakeLayerAnimationControllerClient()
+FakeLayerAnimationValueObserver::FakeLayerAnimationValueObserver()
     : m_opacity(0)
 {
 }
 
-FakeLayerAnimationControllerClient::~FakeLayerAnimationControllerClient()
+FakeLayerAnimationValueObserver::~FakeLayerAnimationValueObserver()
 {
 }
 
-int FakeLayerAnimationControllerClient::id() const
-{
-    return 0;
-}
-
-void FakeLayerAnimationControllerClient::setOpacityFromAnimation(float opacity)
+void FakeLayerAnimationValueObserver::OnOpacityAnimated(float opacity)
 {
     m_opacity = opacity;
 }
 
-float FakeLayerAnimationControllerClient::opacity() const
-{
-    return m_opacity;
-}
-
-void FakeLayerAnimationControllerClient::setTransformFromAnimation(const gfx::Transform& transform)
+void FakeLayerAnimationValueObserver::OnTransformAnimated(const gfx::Transform& transform)
 {
     m_transform = transform;
 }
 
-const gfx::Transform& FakeLayerAnimationControllerClient::transform() const
-{
-    return m_transform;
-}
-
 scoped_ptr<cc::AnimationCurve> FakeFloatTransition::clone() const
 {
     return make_scoped_ptr(new FakeFloatTransition(*this)).PassAs<cc::AnimationCurve>();