CC Animation: Move files from cc_blink to Source/platform/animation

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 274fb80ee9903ca6b15a9003b8605f0a028f5a5e..59b109da491d69f5dcb9eb7b0f1df323e82cf552 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -24,7 +24,6 @@
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
 #include "cc/base/switches.h"
-#include "cc/blink/web_compositor_animation_timeline_impl.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/debug/layer_tree_debug_state.h"
 #include "cc/debug/micro_benchmark.h"
@@ -605,21 +604,16 @@ void RenderWidgetCompositor::clearRootLayer() {
 }
 
 void RenderWidgetCompositor::attachCompositorAnimationTimeline(
-    blink::WebCompositorAnimationTimeline* compositor_timeline) {
-  DCHECK(compositor_timeline);
+    cc::AnimationTimeline* compositor_timeline) {
   DCHECK(layer_tree_host_->animation_host());
-  layer_tree_host_->animation_host()->AddAnimationTimeline(
-      static_cast<const cc_blink::WebCompositorAnimationTimelineImpl*>(
-          compositor_timeline)->animation_timeline());
+  layer_tree_host_->animation_host()->AddAnimationTimeline(compositor_timeline);
 }
 
 void RenderWidgetCompositor::detachCompositorAnimationTimeline(
-    blink::WebCompositorAnimationTimeline* compositor_timeline) {
-  DCHECK(compositor_timeline);
+    cc::AnimationTimeline* compositor_timeline) {
   DCHECK(layer_tree_host_->animation_host());
   layer_tree_host_->animation_host()->RemoveAnimationTimeline(
-      static_cast<const cc_blink::WebCompositorAnimationTimelineImpl*>(
-          compositor_timeline)->animation_timeline());
+      compositor_timeline);
 }
 
 void RenderWidgetCompositor::setViewportSize(