Make cc output surface creation async

cc/trees/layer_tree_host_unittest_no_message_loop.cc

Index: cc/trees/layer_tree_host_unittest_no_message_loop.cc
diff --git a/cc/trees/layer_tree_host_unittest_no_message_loop.cc b/cc/trees/layer_tree_host_unittest_no_message_loop.cc
index f687efb7468f697c88cf8ccc2f38657b49a98012..9bef1ebb7ef16ad0564b3ef42e5e39a84b1f06bd 100644
--- a/cc/trees/layer_tree_host_unittest_no_message_loop.cc
+++ b/cc/trees/layer_tree_host_unittest_no_message_loop.cc
@@ -59,9 +59,9 @@ class LayerTreeHostNoMessageLoopTest
   virtual void Layout() OVERRIDE {}
   virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
                                    float page_scale) OVERRIDE {}
-  virtual scoped_ptr<OutputSurface> CreateOutputSurface(
-      bool fallback) OVERRIDE {
-    return make_scoped_ptr<OutputSurface>(new NoMessageLoopOutputSurface);
+  virtual void RequestNewOutputSurface(bool fallback) OVERRIDE {
+    layer_tree_host_->SetOutputSurface(
+        make_scoped_ptr<OutputSurface>(new NoMessageLoopOutputSurface));
   }
   virtual void DidInitializeOutputSurface() OVERRIDE {
     did_initialize_output_surface_ = true;