Switch to double for time calculations using playback rate.

chromecast/browser/media/media_pipeline_host.cc

 // 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.
 
 #include "chromecast/browser/media/media_pipeline_host.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 124 matching lines @@
 void MediaPipelineHost::Flush(const ::media::PipelineStatusCB& status_cb) {
   DCHECK(thread_checker_.CalledOnValidThread());
   media_pipeline_->Flush(status_cb);
 }
 
 void MediaPipelineHost::Stop() {
   DCHECK(thread_checker_.CalledOnValidThread());
   media_pipeline_->Stop();
 }
 
-void MediaPipelineHost::SetPlaybackRate(float playback_rate) {
+void MediaPipelineHost::SetPlaybackRate(double playback_rate) {
   DCHECK(thread_checker_.CalledOnValidThread());
   media_pipeline_->SetPlaybackRate(playback_rate);
 }
 
 void MediaPipelineHost::SetVolume(TrackId track_id, float volume) {
   DCHECK(thread_checker_.CalledOnValidThread());
   CHECK(track_id == kAudioTrackId);
   media_pipeline_->GetAudioPipeline()->SetVolume(volume);
 }
 
 void MediaPipelineHost::SetCdm(BrowserCdmCast* cdm) {
   DCHECK(thread_checker_.CalledOnValidThread());
   media_pipeline_->SetCdm(cdm);
 }
 
 void MediaPipelineHost::NotifyPipeWrite(TrackId track_id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   MediaTrackMap::iterator it = media_track_map_.find(track_id);
   if (it == media_track_map_.end())
     return;
 
   MediaTrackHost* media_track_host = it->second;
   if (!media_track_host->pipe_write_cb.is_null())
     media_track_host->pipe_write_cb.Run();
 }
 
 }  // namespace media
 }  // namespace chromecast