Switch to double for time calculations using playback rate.

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"
@@ skipping 41 matching lines @@
                        const ::media::AudioDecoderConfig& config,
                        const ::media::PipelineStatusCB& status_cb);
   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 SetPlaybackRate(double playback_rate);
   void SetVolume(TrackId track_id, float playback_rate);
   void SetCdm(BrowserCdmCast* 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_