Move output surface fallback from cc to embedders

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index de91b764e864398d881a0a6d409fc3b40c737579..9c5cf06d3a930c7247885d075c69938fa3e116ee 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -124,11 +124,12 @@ class CC_EXPORT LayerTreeHost {
   void CommitComplete();
   void SetOutputSurface(scoped_ptr<OutputSurface> output_surface);
   void RequestNewOutputSurface();
+  void DidInitializeOutputSurface();
+  void DidFailToInitializeOutputSurface();
   virtual scoped_ptr<LayerTreeHostImpl> CreateLayerTreeHostImpl(
       LayerTreeHostImplClient* client);
   void DidLoseOutputSurface();
   bool output_surface_lost() const { return output_surface_lost_; }
-  virtual void OnCreateAndInitializeOutputSurfaceAttempted(bool success);
   void DidCommitAndDrawFrame() { client_->DidCommitAndDrawFrame(); }
   void DidCompleteSwapBuffers() { client_->DidCompleteSwapBuffers(); }
   void DeleteContentsTexturesOnImplThread(ResourceProvider* resource_provider);
@@ -398,7 +399,6 @@ class CC_EXPORT LayerTreeHost {
   scoped_ptr<RenderingStatsInstrumentation> rendering_stats_instrumentation_;
 
   bool output_surface_lost_;
-  int num_failed_recreate_attempts_;
 
   scoped_refptr<Layer> root_layer_;
   scoped_refptr<HeadsUpDisplayLayer> hud_layer_;