CC Animations: Make LayerAnimationController creation optional

cc/layers/solid_color_layer.cc

Index: cc/layers/solid_color_layer.cc
diff --git a/cc/layers/solid_color_layer.cc b/cc/layers/solid_color_layer.cc
index 25e0ab85fbdabc9e63b639a418cefcf69047204f..2fbaca167ffe4c5bc371f108c0da1a624d1512c7 100644
--- a/cc/layers/solid_color_layer.cc
+++ b/cc/layers/solid_color_layer.cc
@@ -13,12 +13,14 @@ scoped_ptr<LayerImpl> SolidColorLayer::CreateLayerImpl(
   return SolidColorLayerImpl::Create(tree_impl, id());
 }
 
-scoped_refptr<SolidColorLayer> SolidColorLayer::Create() {
-  return make_scoped_refptr(new SolidColorLayer());
+scoped_refptr<SolidColorLayer> SolidColorLayer::Create(
+    const LayerSettings& settings) {
+  return make_scoped_refptr(new SolidColorLayer(settings));
 }
 
-SolidColorLayer::SolidColorLayer()
-    : Layer() {}
+SolidColorLayer::SolidColorLayer(const LayerSettings& settings)
+    : Layer(settings) {
+}
 
 SolidColorLayer::~SolidColorLayer() {}