Added stub MediaSourcePlayer for developing behind the flag

media/base/android/media_codec_player.h

+// Copyright 2015 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_ANDROID_MEDIA_CODEC_PLAYER_H_
+#define MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_
+
+#include "base/android/scoped_java_ref.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/thread.h"
+#include "media/base/android/demuxer_android.h"
+#include "media/base/android/media_player_android.h"
+#include "media/base/media_export.h"
+#include "ui/gl/android/scoped_java_surface.h"
+
+namespace media {
+
+class BrowserCdm;
+
+// Returns the task runner for the media thread
+scoped_refptr<base::SingleThreadTaskRunner> GetMediaTaskRunner();
+
+
+// This class implements the media player using Android's MediaCodec.

[xhwang, 2015/05/06 17:42:44]

nit: Add a comment about the diff b/w this and the MediaSourcePlayer, just to
avoid confusion.

[Tima Vaisburd, 2015/05/08 07:30:54]

Added some words, please take another look

+class MEDIA_EXPORT MediaCodecPlayer : public MediaPlayerAndroid,
+                                      public DemuxerAndroidClient {
+ public:
+  // Constructs a player with the given ID and demuxer. |manager| must outlive
+  // the lifetime of this object.
+  MediaCodecPlayer(int player_id,
+                   MediaPlayerManager* manager,
+                   const RequestMediaResourcesCB& request_media_resources_cb,
+                   scoped_ptr<DemuxerAndroid> demuxer,
+                   const GURL& frame_url);
+  ~MediaCodecPlayer() override;
+
+  // MediaPlayerAndroid implementation.
+  void DeleteOnCorrectThread() override;
+  void SetVideoSurface(gfx::ScopedJavaSurface surface) override;
+  void Start() override;
+  void Pause(bool is_media_related_action) override;
+  void SeekTo(base::TimeDelta timestamp) override;
+  void Release() override;
+  void SetVolume(double volume) override;
+  int GetVideoWidth() override;
+  int GetVideoHeight() override;
+  base::TimeDelta GetCurrentTime() override;
+  base::TimeDelta GetDuration() override;
+  bool IsPlaying() override;
+  bool CanPause() override;
+  bool CanSeekForward() override;
+  bool CanSeekBackward() override;
+  bool IsPlayerReady() override;
+  void SetCdm(BrowserCdm* cdm) override;
+
+  // DemuxerAndroidClient implementation.
+  void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) override;
+  void OnDemuxerDataAvailable(const DemuxerData& params) override;
+  void OnDemuxerSeekDone(base::TimeDelta actual_browser_seek_time) override;
+  void OnDemuxerDurationChanged(base::TimeDelta duration) override;
+
+  // Helper methods
+  void Initialize();
+  void DestroySelf();
+
+ private:
+  // Object for posting tasks on UI thread.
+  scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
+
+  scoped_ptr<DemuxerAndroid> demuxer_;
+
+  base::WeakPtr<MediaCodecPlayer> weak_this_;
+  // NOTE: Weak pointers must be invalidated before all other member variables.
+  base::WeakPtrFactory<MediaCodecPlayer> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaCodecPlayer);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_