Move VideoRenderer out of Filter heirarchy.

media/base/mock_filters.cc

 // 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.
 
 #include "media/base/mock_filters.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "media/base/filter_host.h"
 
 using ::testing::_;
 using ::testing::Invoke;
 using ::testing::NotNull;
 using ::testing::Return;
 
 namespace media {
 
 MockDemuxer::MockDemuxer() {}
 
@@ skipping 58 matching lines @@
 scoped_ptr<FilterCollection> MockFilterCollection::Create() {
   scoped_ptr<FilterCollection> collection(new FilterCollection());
   collection->SetDemuxer(demuxer_);
   collection->AddVideoDecoder(video_decoder_);
   collection->AddAudioDecoder(audio_decoder_);
   collection->AddVideoRenderer(video_renderer_);
   collection->AddAudioRenderer(audio_renderer_);
   return collection.Pass();
 }
 
-MockFilter::MockFilter() : host_(NULL) {}
-
-MockFilter::~MockFilter() {}
-
-void MockFilter::SetHost(FilterHost* host) {
-  host_ = host;
-}
-
 MockStatisticsCB::MockStatisticsCB() {}
 
 MockStatisticsCB::~MockStatisticsCB() {}
 
 }  // namespace media