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, 13 insertions, 13 deletions

diff --git a/cc/layer_tree_host_common_unittest.cc b/cc/layer_tree_host_common_unittest.cc
index 7888a6a..0fd26e4 100644
--- a/cc/layer_tree_host_common_unittest.cc
+++ b/cc/layer_tree_host_common_unittest.cc
@@ -1700,24 +1700,11 @@ TEST(LayerTreeHostCommonTest, verifyAnimationsForRenderSurfaceHierarchy)
     renderSurface1->setForceRenderSurface(true);
     renderSurface2->setForceRenderSurface(true);
 
-    // Put an animated opacity on the render surface.
-    addOpacityTransitionToController(*renderSurface1->layerAnimationController(), 10, 1, 0, false);
-
-    // Also put an animated opacity on a layer without descendants.
-    addOpacityTransitionToController(*grandChildOfRoot->layerAnimationController(), 10, 1, 0, false);
-
     gfx::Transform layerTransform;
     layerTransform.Translate(1, 1);
     gfx::Transform sublayerTransform;
     sublayerTransform.Scale3d(10, 1, 1);
 
-    // Put a transform animation on the render surface.
-    addAnimatedTransformToController(*renderSurface2->layerAnimationController(), 10, 30, 0);
-
-    // Also put transform animations on grandChildOfRoot, and grandChildOfRS2
-    addAnimatedTransformToController(*grandChildOfRoot->layerAnimationController(), 10, 30, 0);
-    addAnimatedTransformToController(*grandChildOfRS2->layerAnimationController(), 10, 30, 0);
-
     setLayerPropertiesForTesting(parent.get(), layerTransform, sublayerTransform, gfx::PointF(0.25, 0), gfx::PointF(2.5, 0), gfx::Size(10, 10), false);
     setLayerPropertiesForTesting(renderSurface1.get(), layerTransform, sublayerTransform, gfx::PointF(0.25, 0), gfx::PointF(2.5, 0), gfx::Size(10, 10), false);
     setLayerPropertiesForTesting(renderSurface2.get(), layerTransform, sublayerTransform, gfx::PointF(0.25, 0), gfx::PointF(2.5, 0), gfx::Size(10, 10), false);
@@ -1728,6 +1715,19 @@ TEST(LayerTreeHostCommonTest, verifyAnimationsForRenderSurfaceHierarchy)
     setLayerPropertiesForTesting(grandChildOfRS1.get(), layerTransform, sublayerTransform, gfx::PointF(0.25, 0), gfx::PointF(2.5, 0), gfx::Size(10, 10), false);
     setLayerPropertiesForTesting(grandChildOfRS2.get(), layerTransform, sublayerTransform, gfx::PointF(0.25, 0), gfx::PointF(2.5, 0), gfx::Size(10, 10), false);
 
+    // Put an animated opacity on the render surface.
+    addOpacityTransitionToController(*renderSurface1->layerAnimationController(), 10, 1, 0, false);
+
+    // Also put an animated opacity on a layer without descendants.
+    addOpacityTransitionToController(*grandChildOfRoot->layerAnimationController(), 10, 1, 0, false);
+
+    // Put a transform animation on the render surface.
+    addAnimatedTransformToController(*renderSurface2->layerAnimationController(), 10, 30, 0);
+
+    // Also put transform animations on grandChildOfRoot, and grandChildOfRS2
+    addAnimatedTransformToController(*grandChildOfRoot->layerAnimationController(), 10, 30, 0);
+    addAnimatedTransformToController(*grandChildOfRS2->layerAnimationController(), 10, 30, 0);
+
     executeCalculateDrawProperties(parent.get());
 
     // Only layers that are associated with render surfaces should have an actual renderSurface() value.