No need `base/float_util.h` since VS2013 supports well enough.

chromium_src/chrome/browser/speech/tts_controller_impl.cc

@@ -7,7 +7,6 @@
 #include <string>
 #include <vector>
 
-#include "base/float_util.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/speech/tts_platform.h"
@@ -461,4 +460,4 @@ void TtsControllerImpl::SetTtsEngineDelegate(
 
 TtsEngineDelegate* TtsControllerImpl::GetTtsEngineDelegate() {
   return tts_engine_delegate_;
-}
+}