Remove DemuxerFactory and URL parameter from Pipeline.

media/filters/dummy_demuxer_factory.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/filters/dummy_demuxer_factory.h"
-
-#include "base/memory/scoped_ptr.h"
-#include "media/filters/dummy_demuxer.h"
-
-namespace media {
-
-DummyDemuxerFactory::DummyDemuxerFactory(bool has_video,
-                                         bool has_audio,
-                                         bool local_source)
-    : has_video_(has_video),
-      has_audio_(has_audio),
-      local_source_(local_source) {
-}
-
-DummyDemuxerFactory::~DummyDemuxerFactory() {}
-
-void DummyDemuxerFactory::Build(const std::string& url,
-                                const BuildCallback& cb) {
-  scoped_refptr<DummyDemuxer> demuxer =
-      new DummyDemuxer(has_video_, has_audio_, local_source_);
-  cb.Run(PIPELINE_OK, demuxer.get());
-}
-
-}  // namespace media