cc: Support on demand raster with ganesh

cc/output/overlay_unittest.cc

 // 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.
 
 #include "cc/base/scoped_ptr_vector.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/overlay_candidate_validator.h"
 #include "cc/output/overlay_processor.h"
@@ skipping 473 matching lines @@
   }
 
  private:
   bool expect_overlays_;
 };
 
 class FakeRendererClient : public RendererClient {
  public:
   // RendererClient methods.
   virtual void SetFullRootLayerDamage() OVERRIDE {}
+  virtual bool UseTaskGraphRunnerForOnDemandRaster() OVERRIDE;
 };
 
+bool FakeRendererClient::UseTaskGraphRunnerForOnDemandRaster() {
+  return true;
+}
+
 class MockOverlayScheduler {
  public:
   MOCK_METHOD5(Schedule,
                void(int plane_z_order,
                     gfx::OverlayTransform plane_transform,
                     unsigned overlay_texture_id,
                     const gfx::Rect& display_bounds,
                     const gfx::RectF& uv_rect));
 };
 
@@ skipping 211 matching lines @@
   renderer_->set_expect_overlays(false);
   renderer_->FinishDrawingFrame(&frame3);
   EXPECT_TRUE(resource_provider_->InUseByConsumer(resource1));
   SwapBuffers();
   EXPECT_FALSE(resource_provider_->InUseByConsumer(resource1));
   Mock::VerifyAndClearExpectations(&scheduler_);
 }
 
 }  // namespace
 }  // namespace cc