Remove media::VideoDecodeContext as it has no implementation and is unused.

webkit/glue/webmediaplayer_impl.cc

 // Copyright (c) 2011 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 "webkit/glue/webmediaplayer_impl.h"
 
 #include <limits>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 192 matching lines @@
         new media::ChunkDemuxerFactory(source_url,
                                        demuxer_factory.release(),
                                        proxy_));
   }
   filter_collection_->SetDemuxerFactory(demuxer_factory.release());
 
   // Add in the default filter factories.
   filter_collection_->AddAudioDecoder(new media::FFmpegAudioDecoder(
       message_loop_factory_->GetMessageLoop("AudioDecoderThread")));
   filter_collection_->AddVideoDecoder(new media::FFmpegVideoDecoder(
-      message_loop_factory_->GetMessageLoop("VideoDecoderThread"), NULL));
+      message_loop_factory_->GetMessageLoop("VideoDecoderThread")));
   filter_collection_->AddAudioRenderer(new media::NullAudioRenderer());
 
   return true;
 }
 
 WebMediaPlayerImpl::~WebMediaPlayerImpl() {
   DCHECK_EQ(main_loop_, MessageLoop::current());
   Destroy();
   media_log_->AddEvent(
       media_log_->CreateEvent(media::MediaLogEvent::WEBMEDIAPLAYER_DESTROYED));
@@ skipping 639 matching lines @@
   return client_;
 }
 
 void WebMediaPlayerImpl::IncrementExternallyAllocatedMemory() {
   DCHECK_EQ(main_loop_, MessageLoop::current());
   incremented_externally_allocated_memory_ = true;
   v8::V8::AdjustAmountOfExternalAllocatedMemory(kPlayerExtraMemory);
 }
 
 }  // namespace webkit_glue