Support CAST+WMPI on android

media/blink/renderer_media_player_interface.h

+// Copyright 2016 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_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_
+#define MEDIA_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_
+
+// This file contains interfaces modeled after classes in
+// content/renderer/media/android for the purposes of letting clases in
+// this directory implement and/or interact with those classes.
+// It's a stop-gap used to support cast on android until a better solution
+// is implemented: crbug/575276
+
+#include <string>
+#include "base/time/time.h"
+#include "ui/gfx/geometry/rect_f.h"
+#include "url/gurl.h"
+
+namespace media {
+
+class RendererMediaPlayerInterface {
+ public:
+  virtual void OnMediaMetadataChanged(base::TimeDelta duration,
+                                      int width,
+                                      int height,
+                                      bool success) = 0;
+  virtual void OnPlaybackComplete() = 0;
+  virtual void OnBufferingUpdate(int percentage) = 0;
+  virtual void OnSeekRequest(const base::TimeDelta& time_to_seek) = 0;
+  virtual void OnSeekComplete(const base::TimeDelta& current_time) = 0;
+  virtual void OnMediaError(int error_type) = 0;
+  virtual void OnVideoSizeChanged(int width, int height) = 0;
+
+  // Called to update the current time.
+  virtual void OnTimeUpdate(base::TimeDelta current_timestamp,
+                            base::TimeTicks current_time_ticks) = 0;
+
+  virtual void OnWaitingForDecryptionKey() = 0;
+  virtual void OnPlayerReleased() = 0;
+
+  // Functions called when media player status changes.
+  virtual void OnConnectedToRemoteDevice(
+      const std::string& remote_playback_message) = 0;
+  virtual void OnDisconnectedFromRemoteDevice() = 0;
+  virtual void OnDidExitFullscreen() = 0;
+  virtual void OnMediaPlayerPlay() = 0;
+  virtual void OnMediaPlayerPause() = 0;
+  virtual void OnRemoteRouteAvailabilityChanged(bool routes_available) = 0;
+
+  // Getters of playback state.
+  virtual bool paused() const = 0;
+
+  // True if the loaded media has a playable video track.
+  virtual bool hasVideo() const = 0;
+
+  // This function is called by the RendererMediaPlayerManager to pause the
+  // video and release the media player and surface texture when we switch tabs.
+  // However, the actual GlTexture is not released to keep the video screenshot.
+  virtual void ReleaseMediaResources() = 0;
+
+#if defined(VIDEO_HOLE)
+  // Calculate the boundary rectangle of the media player (i.e. location and
+  // size of the video frame).
+  // Returns true if the geometry has been changed since the last call.
+  virtual bool UpdateBoundaryRectangle() = 0;
+
+  virtual const gfx::RectF GetBoundaryRectangle() = 0;
+#endif
+};
+
+// Dictates which type of media playback is being initialized.
+// Must match content/common/media/media_player_messages_enums_android.h
+enum MediaPlayerHostMsg_Initialize_Type {

[DaleCurtis, 2016/01/12 23:21:53]

Why not include this file in
content/common/media/media_player_messages_enums_android.h so they use the same
enum?

[hubbe, 2016/01/13 00:11:56]

Thought that would end up causing dependency problems, but it seems to work
fine.
Done.

+  MEDIA_PLAYER_TYPE_URL,
+  MEDIA_PLAYER_TYPE_MEDIA_SOURCE,
+  MEDIA_PLAYER_TYPE_REMOTE_ONLY,
+  MEDIA_PLAYER_TYPE_LAST = MEDIA_PLAYER_TYPE_MEDIA_SOURCE
+};
+
+class RendererMediaPlayerManagerInterface {
+ public:
+  // Initializes a MediaPlayerAndroid object in browser process.
+  virtual void Initialize(MediaPlayerHostMsg_Initialize_Type type,
+                          int player_id,
+                          const GURL& url,
+                          const GURL& first_party_for_cookies,
+                          int demuxer_client_id,
+                          const GURL& frame_url,
+                          bool allow_credentials) = 0;
+
+  // Starts the player.
+  virtual void Start(int player_id) = 0;
+
+  // Pauses the player.
+  // is_media_related_action should be true if this pause is coming from an
+  // an action that explicitly pauses the video (user pressing pause, JS, etc.)
+  // Otherwise it should be false if Pause is being called due to other reasons
+  // (cleanup, freeing resources, etc.)
+  virtual void Pause(int player_id, bool is_media_related_action) = 0;
+
+  // Performs seek on the player.
+  virtual void Seek(int player_id, const base::TimeDelta& time) = 0;
+
+  // Sets the player volume.
+  virtual void SetVolume(int player_id, double volume) = 0;
+
+  // Sets the poster image.
+  virtual void SetPoster(int player_id, const GURL& poster) = 0;
+
+  // Releases resources for the player.
+  virtual void ReleaseResources(int player_id) = 0;
+
+  // Destroys the player in the browser process
+  virtual void DestroyPlayer(int player_id) = 0;
+
+  // Requests remote playback if possible
+  virtual void RequestRemotePlayback(int player_id) = 0;
+
+  // Requests control of remote playback
+  virtual void RequestRemotePlaybackControl(int player_id) = 0;
+
+  // Registers and unregisters a RendererMediaPlayerInterface object.
+  virtual int RegisterMediaPlayer(RendererMediaPlayerInterface* player) = 0;
+  virtual void UnregisterMediaPlayer(int player_id) = 0;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_