Switch to double for time calculations using playback rate.

chromecast/media/base/switching_media_renderer.cc

 // Copyright 2015 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.
 
 #include "chromecast/media/base/switching_media_renderer.h"
 
 #include "base/logging.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/demuxer_stream_provider.h"
@@ skipping 61 matching lines @@
 }
 
 void SwitchingMediaRenderer::Flush(const base::Closure& flush_cb) {
   GetRenderer()->Flush(flush_cb);
 }
 
 void SwitchingMediaRenderer::StartPlayingFrom(base::TimeDelta time) {
   GetRenderer()->StartPlayingFrom(time);
 }
 
-void SwitchingMediaRenderer::SetPlaybackRate(float playback_rate)  {
+void SwitchingMediaRenderer::SetPlaybackRate(double playback_rate)  {
   GetRenderer()->SetPlaybackRate(playback_rate);
 }
 
 void SwitchingMediaRenderer::SetVolume(float volume)  {
   GetRenderer()->SetVolume(volume);
 }
 
 base::TimeDelta SwitchingMediaRenderer::GetMediaTime()  {
   return GetRenderer()->GetMediaTime();
 }
 
 bool SwitchingMediaRenderer::HasAudio() {
   return GetRenderer()->HasAudio();
 }
 
 bool SwitchingMediaRenderer::HasVideo() {
   return GetRenderer()->HasVideo();
 }
 
 }  // namespace media
 }  // namespace chromecast