Switch to double for time calculations using playback rate.

chromecast/media/cma/pipeline/media_pipeline_impl.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_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_
 #define CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 33 matching lines @@
       const ::media::AudioDecoderConfig& config,
       scoped_ptr<CodedFrameProvider> frame_provider,
       const ::media::PipelineStatusCB& status_cb) override;
   void InitializeVideo(
       const ::media::VideoDecoderConfig& config,
       scoped_ptr<CodedFrameProvider> frame_provider,
       const ::media::PipelineStatusCB& status_cb) override;
   void StartPlayingFrom(base::TimeDelta time) override;
   void Flush(const ::media::PipelineStatusCB& status_cb) override;
   void Stop() override;
-  void SetPlaybackRate(float playback_rate) override;
+  void SetPlaybackRate(double playback_rate) override;
 
   AudioPipelineImpl* GetAudioPipelineImpl() const;
   VideoPipelineImpl* GetVideoPipelineImpl() const;
 
   void SetCdm(BrowserCdmCast* cdm);
 
  private:
   void StateTransition(const ::media::PipelineStatusCB& status_cb,
                        ::media::PipelineStatus status);
 
@@ skipping 39 matching lines @@
   base::WeakPtr<MediaPipelineImpl> weak_this_;
   base::WeakPtrFactory<MediaPipelineImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPipelineImpl);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_