Prime the landing pad for the new video rendering pipeline.

media/tools/player_x11/data_source_logger.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_TOOLS_PLAYER_X11_DATA_SOURCE_LOGGER_H_
-#define MEDIA_TOOLS_PLAYER_X11_DATA_SOURCE_LOGGER_H_
-
-#include "media/base/data_source.h"
-
-// Logs all DataSource operations to VLOG(1) for debugging purposes.
-class DataSourceLogger : public media::DataSource {
- public:
-  // Constructs a DataSourceLogger to log operations against another DataSource.
-  //
-  // |data_source| must be initialized in advance.
-  //
-  // |streaming| when set to true will override the implementation
-  // IsStreaming() to always return true, otherwise it will delegate to
-  // |data_source|.
-  DataSourceLogger(scoped_ptr<DataSource> data_source,
-                   bool force_streaming);
-  ~DataSourceLogger() override;
-
-  // media::DataSource implementation.
-  void Stop() override;
-  void Read(int64 position,
-            int size,
-            uint8* data,
-            const media::DataSource::ReadCB& read_cb) override;
-  bool GetSize(int64* size_out) override;
-  bool IsStreaming() override;
-  void SetBitrate(int bitrate) override;
-
- private:
-  scoped_ptr<media::DataSource> data_source_;
-  bool streaming_;
-
-  DISALLOW_COPY_AND_ASSIGN(DataSourceLogger);
-};
-
-#endif  // MEDIA_TOOLS_PLAYER_X11_DATA_SOURCE_LOGGER_H_