Enable accelerated animations for orphaned layers

webkit/compositor_bindings/web_layer_tree_view_impl.cc

Index: webkit/compositor_bindings/web_layer_tree_view_impl.cc
diff --git a/webkit/compositor_bindings/web_layer_tree_view_impl.cc b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
index 5165f98eb0d0be11fd6e2ef966ea69620df2480e..f5b53740c2cfa69ee1a5afdce36bbd8c4994a3d5 100644
--- a/webkit/compositor_bindings/web_layer_tree_view_impl.cc
+++ b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
@@ -150,17 +150,10 @@ void WebLayerTreeViewImpl::composite()
     m_layerTreeHost->composite();
 }
 
-// TODO(ajuma): Remove this after the WebKit patch to use the 2-argument version lands.
-void WebLayerTreeViewImpl::updateAnimations(double frameBeginTimeSeconds)
-{
-    base::TimeTicks frameBeginTime = base::TimeTicks::FromInternalValue(frameBeginTimeSeconds * base::Time::kMicrosecondsPerSecond);
-    m_layerTreeHost->updateAnimations(frameBeginTime, base::Time::Now());
-}
-
 void WebLayerTreeViewImpl::updateAnimations(double monotonicFrameBeginTimeSeconds, double wallClockFrameBeginTimeSeconds)
 {
     base::TimeTicks monotonicFrameBeginTime = base::TimeTicks::FromInternalValue(monotonicFrameBeginTimeSeconds * base::Time::kMicrosecondsPerSecond);
-    base::Time wallClockFrameBeginTime = base::Time::FromInternalValue(wallClockFrameBeginTimeSeconds* base::Time::kMicrosecondsPerSecond);
+    base::Time wallClockFrameBeginTime = base::Time::FromInternalValue(wallClockFrameBeginTimeSeconds * base::Time::kMicrosecondsPerSecond);
     m_layerTreeHost->updateAnimations(monotonicFrameBeginTime, wallClockFrameBeginTime);
 }
 
@@ -184,6 +177,12 @@ void WebLayerTreeViewImpl::setDeferCommits(bool deferCommits)
     m_layerTreeHost->setDeferCommits(deferCommits);
 }
 
+void WebLayerTreeViewImpl::registerForAnimations(WebLayer* layer)
+{
+    cc::Layer* ccLayer = static_cast<WebLayerImpl*>(layer)->layer();
+    ccLayer->layerAnimationController()->setAnimationRegistrar(m_layerTreeHost->animationRegistrar());
+}
+
 void WebLayerTreeViewImpl::renderingStats(WebRenderingStats& stats) const
 {
     m_layerTreeHost->renderingStats(