cc: Support on demand raster with ganesh

cc/test/fake_renderer_client.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_FAKE_RENDERER_CLIENT_H_
 #define CC_TEST_FAKE_RENDERER_CLIENT_H_
 
 #include "cc/output/renderer.h"
 
 namespace cc {
 
 class FakeRendererClient : public RendererClient {
  public:
   FakeRendererClient();
 
   // RendererClient methods.
   virtual void SetFullRootLayerDamage() OVERRIDE;
+  virtual void RunOnDemandRasterTask(Task* on_demand_raster_task) OVERRIDE {}
 
   // Methods added for test.
   int set_full_root_layer_damage_count() const {
     return set_full_root_layer_damage_count_;
   }
 
  private:
   int set_full_root_layer_damage_count_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_RENDERER_CLIENT_H_