Adds hook for content embedders to get media::BrowserCdm*.

chromecast/browser/media/media_pipeline_host.h

 // 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 CHROMECAST_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_
 #define CHROMECAST_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_
 
 #include <map>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "chromecast/common/media/cma_ipc_common.h"
 #include "chromecast/media/cma/pipeline/load_type.h"
 #include "media/base/pipeline_status.h"
 
 namespace base {
 class SharedMemory;
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 class AudioDecoderConfig;
+class BrowserCdm;
 class VideoDecoderConfig;
 }
 
 namespace chromecast {
 namespace media {
 struct AvPipelineClient;
 struct MediaPipelineClient;
 class MediaPipelineImpl;
 struct VideoPipelineClient;
 
@@ skipping 16 matching lines @@
   void VideoInitialize(TrackId track_id,
                        const VideoPipelineClient& client,
                        const ::media::VideoDecoderConfig& config,
                        const ::media::PipelineStatusCB& status_cb);
   void StartPlayingFrom(base::TimeDelta time);
   void Flush(const ::media::PipelineStatusCB& status_cb);
   void Stop();
 
   void SetPlaybackRate(float playback_rate);
   void SetVolume(TrackId track_id, float playback_rate);
-  void SetCdm(int render_process_id, int render_frame_id, int cdm_id);
+  void SetCdm(::media::BrowserCdm* cdm);
 
   void NotifyPipeWrite(TrackId track_id);
 
  private:
   base::ThreadChecker thread_checker_;
 
   scoped_ptr<MediaPipelineImpl> media_pipeline_;
 
   // The shared memory for a track id must be valid until Stop is invoked on
   // that track id.
   struct MediaTrackHost;
   typedef std::map<TrackId, MediaTrackHost*> MediaTrackMap;
   MediaTrackMap media_track_map_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPipelineHost);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_