Enable PipelineIntegrationTests in mojo!

media/test/pipeline_integration_test_base.h

 // Copyright (c) 2012 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 MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
 #define MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
 
 #include "base/md5.h"
 #include "base/message_loop/message_loop.h"
 #include "media/audio/clockless_audio_sink.h"
@@ skipping 112 matching lines @@
   }
 
   void OnEnded();
   void OnError(PipelineStatus status);
   void QuitAfterCurrentTimeTask(const base::TimeDelta& quit_time);
 
   // Creates Demuxer and sets |demuxer_|.
   void CreateDemuxer(const std::string& filename);
 
   // Creates and returns a Renderer.
-  scoped_ptr<Renderer> CreateRenderer();
+  virtual scoped_ptr<Renderer> CreateRenderer();
 
   void OnVideoFramePaint(const scoped_refptr<VideoFrame>& frame);
 
   MOCK_METHOD1(OnMetadata, void(PipelineMetadata));
   MOCK_METHOD1(OnBufferingStateChanged, void(BufferingState));
   MOCK_METHOD1(DecryptorAttached, void(bool));
   MOCK_METHOD2(OnAddTextTrack,
                void(const TextTrackConfig& config,
                     const AddTextTrackDoneCB& done_cb));
 };
 
 }  // namespace media
 
 #endif  // MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_