Remove DemuxerFactory and URL parameter from Pipeline.

media/base/demuxer_factory.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_BASE_DEMUXER_FACTORY_H_
-#define MEDIA_BASE_DEMUXER_FACTORY_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "media/base/media_export.h"
-#include "media/base/pipeline_status.h"
-
-namespace media {
-
-class Demuxer;
-
-// Asynchronous factory interface for building Demuxer objects.
-class MEDIA_EXPORT DemuxerFactory {
- public:
-  // Ownership of the Demuxer is transferred through this callback.
-  typedef base::Callback<void(PipelineStatus, Demuxer*)> BuildCallback;
-
-  virtual ~DemuxerFactory();
-
-  // Builds a Demuxer for |url| and returns it via |callback|.
-  virtual void Build(const std::string& url, const BuildCallback& callback) = 0;
-};
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_DEMUXER_FACTORY_H_