Added stub MediaSourcePlayer for developing behind the flag

media/base/android/mt/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_MT_PLAYER_H_
+#define MEDIA_BASE_ANDROID_MT_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"
+
+namespace media {
+namespace mt {

[timav, 2015/04/09 21:10:02]

Nested namespace and nested mt/ directory. "mt" stands for "multithreaded". Does
it look good to you?

+
+// Returns the task runner for the media thread
+scoped_refptr<base::SingleThreadTaskRunner> GetMediaTaskRunner();
+
+// This class handles media source extensions on Android.
+class MEDIA_EXPORT Player : public MediaPlayerAndroid,
+                            public DemuxerAndroidClient {
+ public:
+  // Constructs a player with the given ID and demuxer. |manager| must outlive
+  // the lifetime of this object.
+  Player(int player_id,
+         MediaPlayerManager* manager,
+         const RequestMediaResourcesCB& request_media_resources_cb,
+         scoped_ptr<DemuxerAndroid> demuxer,
+         const GURL& frame_url);
+  ~Player() override;
+
+  // MediaPlayerAndroid implementation.
+  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;
+
+ private:
+
+  // Events from UI posted to Media thread
+  void SetVideoSurfaceInternal(gfx::ScopedJavaSurface surface);
+  void StartInternal();
+  void PauseInternal();
+  void SeekToInternal(base::TimeDelta timestamp);
+  void ReleaseInternal();
+
+  // Data
+
+  scoped_ptr<DemuxerAndroid> demuxer_;
+
+  base::WeakPtr<Player> weak_this_;
+  // NOTE: Weak pointers must be invalidated before all other member variables.
+  base::WeakPtrFactory<Player> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(Player);
+};
+
+}  // namespace mt
+}  // namespace media
+
+#endif  // MEDIA_BASE_ANDROID_MT_PLAYER_H_