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

base/trace_event/trace_event_impl.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 "base/trace_event/trace_event_impl.h"
 
 #include <algorithm>
+#include <cmath>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/leak_annotations.h"
-#include "base/float_util.h"
 #include "base/format_macros.h"
 #include "base/json/string_escape.h"
 #include "base/lazy_instance.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_loop.h"
 #include "base/process/process_metrics.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_tokenizer.h"
@@ skipping 615 matching lines @@
       StringAppendF(out, "%" PRIu64, static_cast<uint64>(value.as_uint));
       break;
     case TRACE_VALUE_TYPE_INT:
       StringAppendF(out, "%" PRId64, static_cast<int64>(value.as_int));
       break;
     case TRACE_VALUE_TYPE_DOUBLE: {
       // FIXME: base/json/json_writer.cc is using the same code,
       //        should be made into a common method.
       std::string real;
       double val = value.as_double;
-      if (IsFinite(val)) {
+      if (std::isfinite(val)) {
         real = DoubleToString(val);
         // Ensure that the number has a .0 if there's no decimal or 'e'.  This
         // makes sure that when we read the JSON back, it's interpreted as a
         // real rather than an int.
         if (real.find('.') == std::string::npos &&
             real.find('e') == std::string::npos &&
             real.find('E') == std::string::npos) {
           real.append(".0");
         }
         // The JSON spec requires that non-integer values in the range (-1,1)
         // have a zero before the decimal point - ".52" is not valid, "0.52" is.
         if (real[0] == '.') {
           real.insert(0, "0");
         } else if (real.length() > 1 && real[0] == '-' && real[1] == '.') {
           // "-.1" bad "-0.1" good
           real.insert(1, "0");
         }
-      } else if (IsNaN(val)){
+      } else if (std::isnan(val)){
         // The JSON spec doesn't allow NaN and Infinity (since these are
         // objects in EcmaScript).  Use strings instead.
         real = "\"NaN\"";
       } else if (val < 0) {
         real = "\"-Infinity\"";
       } else {
         real = "\"Infinity\"";
       }
       StringAppendF(out, "%s", real.c_str());
       break;
@@ skipping 1937 matching lines @@
 }
 
 ScopedTraceBinaryEfficient::~ScopedTraceBinaryEfficient() {
   if (*category_group_enabled_) {
     TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_group_enabled_,
                                                 name_, event_handle_);
   }
 }
 
 }  // namespace trace_event_internal