Report VideoDecoder status through ReadCB instead of through FilterHost.

media/base/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/filters.h"
 
 #include "base/logging.h"
 
 namespace media {
 
@@ skipping 43 matching lines @@
   callback.Run(PIPELINE_OK);
 }
 
 void Filter::OnAudioRendererDisabled() {
 }
 
 VideoDecoder::VideoDecoder() {}
 
 VideoDecoder::~VideoDecoder() {}
 
+// TODO(xhwang): Remove the following four functions when VideoDecoder is not a
+// Filter any more. See bug: http://crbug.com/108340
 void VideoDecoder::Play(const base::Closure& /* callback */) {
   LOG(FATAL) << "VideoDecoder::Play is not supposed to be called.";
 }
 
 void VideoDecoder::Pause(const base::Closure& /* callback */) {
   LOG(FATAL) << "VideoDecoder::Pause is not supposed to be called.";
 }
 
 void VideoDecoder::Seek(base::TimeDelta /* time */,
                         const PipelineStatusCB& /* callback */) {
   LOG(FATAL) << "VideoDecoder::Seek is not supposed to be called.";
 }
 
+FilterHost* VideoDecoder::host() {
+  LOG(FATAL) << "VideoDecoder::host is not supposed to be called.";
+  return NULL;
+}
+
 bool VideoDecoder::HasAlpha() const {
   return false;
 }
 
 void VideoDecoder::PrepareForShutdownHack() {}
 
 }  // namespace media