cc: Support on demand raster with ganesh

cc/test/pixel_test.cc

 // Copyright 2013 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/test/pixel_test.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
@@ skipping 128 matching lines @@
 
 void PixelTest::ForceDeviceClip(const gfx::Rect& clip) {
   external_device_clip_rect_ = clip;
 }
 
 void PixelTest::EnableExternalStencilTest() {
   static_cast<PixelTestOutputSurface*>(output_surface_.get())
       ->set_has_external_stencil_test(true);
 }
 
+bool PixelTest::UseTaskGraphRunnerForOnDemandRaster() {
+  return true;
+}
+
 void PixelTest::SetUpSoftwareRenderer() {
   scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
   output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
   output_surface_->BindToClient(output_surface_client_.get());
   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
   resource_provider_ = ResourceProvider::Create(
       output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1, false);
   renderer_ =
       SoftwareRenderer::Create(
           this, &settings_, output_surface_.get(), resource_provider_.get())
           .PassAs<DirectRenderer>();
 }
 
 }  // namespace cc