Removed obsolete float_util.h as VS2013 supports standards well enough.

content/renderer/media/media_stream_audio_level_calculator.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 "content/renderer/media/media_stream_audio_level_calculator.h"
 
-#include "base/float_util.h"
+#include <cmath>
+
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "media/base/audio_bus.h"
 
 namespace content {
 
 namespace {
 
 // Calculates the maximum absolute amplitude of the audio data.
 float MaxAmplitude(const float* audio_data, int length) {
   float max = 0.0f;
   for (int i = 0; i < length; ++i) {
     const float absolute = fabsf(audio_data[i]);
     if (absolute > max)
       max = absolute;
   }
-  DCHECK(base::IsFinite(max));
+  DCHECK(std::isfinite(max));
   return max;
 }
 
 }  // namespace
 
 MediaStreamAudioLevelCalculator::MediaStreamAudioLevelCalculator()
     : counter_(0),
       max_amplitude_(0.0f),
       level_(0.0f) {
 }
@@ skipping 24 matching lines @@
     max_amplitude_ /= 4.0f;
 
     // Reset the counter.
     counter_ = 0;
   }
 
   return level_;
 }
 
 }  // namespace content