Remove logging.h from cc files that don't use it.

media/base/synchronizer.cc

 // Copyright (c) 2009 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 "base/logging.h"
 #include "media/base/synchronizer.h"
 
 namespace media {
 
 const int64 Synchronizer::kMinFrameDelayUs = 0;
 const int64 Synchronizer::kMaxFrameDelayUs = 250000;
 
 Synchronizer::Synchronizer() {
 }
 
@@ skipping 66 matching lines @@
       sleep = base::TimeDelta::FromMicroseconds(kMaxFrameDelayUs);
     }
   }
   last_time_ = time;
 
   *delay_out = sleep;
   *should_skip_out = false;
 }
 
 }  // namespace media