MediaResource refactoring to support multiple streams

media/base/demuxer_stream_provider.h

Index: media/base/demuxer_stream_provider.h
diff --git a/media/base/demuxer_stream_provider.h b/media/base/demuxer_stream_provider.h
deleted file mode 100644
index 353455051e79e154aa615893d15c555878d189e6..0000000000000000000000000000000000000000
--- a/media/base/demuxer_stream_provider.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 2014 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_STREAM_PROVIDER_H_
-#define MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_
-
-#include "base/macros.h"
-#include "media/base/demuxer_stream.h"
-#include "media/base/media_export.h"
-#include "media/base/media_url_params.h"
-#include "url/gurl.h"
-
-namespace media {
-
-// Abstract class that defines how to retrieve "media sources" in DemuxerStream
-// form (for most cases) or URL form (for the MediaPlayerRenderer case).
-//
-// The sub-classes do not stricly provide demuxer streams, but because all
-// sub-classes are for the moment Demuxers, this class has not been renamed to
-// "MediaProvider". This class would be a good candidate for renaming, if
-// ever Pipeline were to support this class directly, instead of the Demuxer
-// interface.
-// TODO(tguilbert): Rename this class. See crbug.com/658062.
-//
-// The derived classes must return a non-null value for the getter method
-// associated with their type, and return a null/empty value for other getters.
-class MEDIA_EXPORT DemuxerStreamProvider {
- public:
-  enum Type {
-    STREAM,  // Indicates GetStream() should be used
-    URL,     // Indicates GetUrl() should be used
-  };
-
-  DemuxerStreamProvider();
-  virtual ~DemuxerStreamProvider();
-
-  // For Type::STREAM:
-  //   Returns the first stream of the given stream type (which is not allowed
-  //   to be DemuxerStream::TEXT), or NULL if that type of stream is not
-  //   present.
-  //   NOTE: Once a DemuxerStream pointer is returned from GetStream it is
-  //   guaranteed to stay valid for as long as the Demuxer/DemuxerStreamProvider
-  //   is alive. But make no assumption that once GetStream returned a non-null
-  //   pointer for some stream type then all subsequent calls will also return
-  //   non-null pointer for the same stream type. In MSE Javascript code can
-  //   remove SourceBuffer from a MediaSource at any point and this will make
-  //   some previously existing streams inaccessible/unavailable.
-  // Other types:
-  //   Should not be called.
-  virtual DemuxerStream* GetStream(DemuxerStream::Type type) = 0;
-
-  // For Type::URL:
-  //   Returns the URL parameters of the media to play. Empty URLs are legal,
-  //   and should be handled appropriately by the caller.
-  // Other types:
-  //   Should not be called.
-  virtual MediaUrlParams GetMediaUrlParams() const;
-
-  virtual DemuxerStreamProvider::Type GetType() const;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProvider);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_