Revert of Remove media::VideoRenderer::SetPlaybackRate().

media/base/pipeline.cc

 // Copyright (c) 2012 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 "media/base/pipeline.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 631 matching lines @@
   if (state_ != kPlaying)
     return;
 
   {
     base::AutoLock auto_lock(lock_);
     interpolator_->SetPlaybackRate(playback_rate);
   }
 
   if (audio_renderer_)
     audio_renderer_->SetPlaybackRate(playback_rate_);
+  if (video_renderer_)
+    video_renderer_->SetPlaybackRate(playback_rate_);
 }
 
 void Pipeline::VolumeChangedTask(float volume) {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   // Volume changes are only carried out while playing.
   if (state_ != kPlaying)
     return;
 
   if (audio_renderer_)
@@ skipping 246 matching lines @@
 void Pipeline::StartClockIfWaitingForTimeUpdate_Locked() {
   lock_.AssertAcquired();
   if (interpolation_state_ != INTERPOLATION_WAITING_FOR_AUDIO_TIME_UPDATE)
     return;
 
   interpolation_state_ = INTERPOLATION_STARTED;
   interpolator_->StartInterpolating();
 }
 
 }  // namespace media