CC Animations: Make LayerAnimationController creation optional

cc/layers/surface_layer.cc

Index: cc/layers/surface_layer.cc
diff --git a/cc/layers/surface_layer.cc b/cc/layers/surface_layer.cc
index 1a690b6eb025e21522f9b76813c8e9ee914d077f..2d50182a49ae2adb9edc15382fa05a9e3ae47f94 100644
--- a/cc/layers/surface_layer.cc
+++ b/cc/layers/surface_layer.cc
@@ -35,15 +35,17 @@ class SatisfySwapPromise : public SwapPromise {
 };
 
 scoped_refptr<SurfaceLayer> SurfaceLayer::Create(
+    const LayerSettings& settings,
     const SatisfyCallback& satisfy_callback,
     const RequireCallback& require_callback) {
   return make_scoped_refptr(
-      new SurfaceLayer(satisfy_callback, require_callback));
+      new SurfaceLayer(settings, satisfy_callback, require_callback));
 }
 
-SurfaceLayer::SurfaceLayer(const SatisfyCallback& satisfy_callback,
+SurfaceLayer::SurfaceLayer(const LayerSettings& settings,
+                           const SatisfyCallback& satisfy_callback,
                            const RequireCallback& require_callback)
-    : Layer(),
+    : Layer(settings),
       surface_scale_(1.f),
       satisfy_callback_(satisfy_callback),
       require_callback_(require_callback) {