Switch to double for time calculations using playback rate.

chromecast/renderer/media/media_pipeline_proxy.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_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_
 #define CHROMECAST_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 32 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;
 
  private:
   void OnProxyFlushDone(const ::media::PipelineStatusCB& status_cb,
                         ::media::PipelineStatus status);
 
   base::ThreadChecker thread_checker_;
 
   scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
 
   const int render_frame_id_;
@@ skipping 12 matching lines @@
   base::WeakPtr<MediaPipelineProxy> weak_this_;
   base::WeakPtrFactory<MediaPipelineProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPipelineProxy);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_