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

content/renderer/media/media_stream_audio_level_calculator.cc

Index: content/renderer/media/media_stream_audio_level_calculator.cc
diff --git a/content/renderer/media/media_stream_audio_level_calculator.cc b/content/renderer/media/media_stream_audio_level_calculator.cc
index 320b1ab728d736b58c1a7f4450ea080e07fbb186..a3842205a1e3b9773754e661a96d5ded22fb49bf 100644
--- a/content/renderer/media/media_stream_audio_level_calculator.cc
+++ b/content/renderer/media/media_stream_audio_level_calculator.cc
@@ -4,7 +4,6 @@
 
 #include "content/renderer/media/media_stream_audio_level_calculator.h"
 
-#include "base/float_util.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "media/base/audio_bus.h"
@@ -21,7 +20,7 @@ float MaxAmplitude(const float* audio_data, int length) {
     if (absolute > max)
       max = absolute;
   }
-  DCHECK(base::IsFinite(max));
+  DCHECK(std::isfinite(max));

[Mark Mentovai, 2015/04/09 12:46:37]

#include <cmath>. I asked you to self-review to find other instances of this.
The two I’ve called out aren’t the only ones that have been omitted in patch set
2. If you’re not going to take the time to find them, why should I?

[Mateusz Szymański, 2015/04/09 15:32:29]

Done.

   return max;
 }