Switch to double for time calculations using playback rate.

media/mojo/services/mojo_renderer_service.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 MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 #define MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ skipping 25 matching lines @@
   MojoRendererService();
   ~MojoRendererService() override;
 
   // mojo::MediaRenderer implementation.
   void Initialize(mojo::MediaRendererClientPtr client,
                   mojo::DemuxerStreamPtr audio,
                   mojo::DemuxerStreamPtr video,
                   const mojo::Closure& callback) override;
   void Flush(const mojo::Closure& callback) override;
   void StartPlayingFrom(int64_t time_delta_usec) override;
-  void SetPlaybackRate(float playback_rate) override;
+  void SetPlaybackRate(double playback_rate) override;
   void SetVolume(float volume) override;
 
  private:
   enum State {
     STATE_UNINITIALIZED,
     STATE_INITIALIZING,
     STATE_FLUSHING,
     STATE_PLAYING,
     STATE_ERROR
   };
@@ skipping 42 matching lines @@
 
   base::WeakPtr<MojoRendererService> weak_this_;
   base::WeakPtrFactory<MojoRendererService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererService);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_