Use C++11 features in core/timing

Source/core/timing/PerformanceUserTiming.cpp

 /*
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
 #include "core/dom/ExceptionCode.h"
 #include "core/timing/Performance.h"
 #include "core/timing/PerformanceMark.h"
 #include "core/timing/PerformanceMeasure.h"
 #include "public/platform/Platform.h"
 
 namespace blink {
 
 namespace {
 
-typedef HashMap<String, NavigationTimingFunction> RestrictedKeyMap;
+using RestrictedKeyMap = HashMap<String, NavigationTimingFunction>;
 static RestrictedKeyMap restrictedKeyMap()
 {
     DEFINE_STATIC_LOCAL(RestrictedKeyMap, map, ());
     if (map.isEmpty()) {
         map.add("navigationStart", &PerformanceTiming::navigationStart);
         map.add("unloadEventStart", &PerformanceTiming::unloadEventStart);
         map.add("unloadEventEnd", &PerformanceTiming::unloadEventEnd);
         map.add("redirectStart", &PerformanceTiming::redirectStart);
         map.add("redirectEnd", &PerformanceTiming::redirectEnd);
         map.add("fetchStart", &PerformanceTiming::fetchStart);
@@ skipping 110 matching lines @@
 
 void UserTiming::clearMeasures(const String& measureName)
 {
     clearPeformanceEntries(m_measuresMap, measureName);
 }
 
 static PerformanceEntryVector convertToEntrySequence(const PerformanceEntryMap& performanceEntryMap)
 {
     PerformanceEntryVector entries;
 
-    for (PerformanceEntryMap::const_iterator it = performanceEntryMap.begin(); it != performanceEntryMap.end(); ++it)
-        entries.appendVector(it->value);
+    for (const auto& entry : performanceEntryMap)
+        entries.appendVector(entry.value);
 
     return entries;
 }
 
 static PerformanceEntryVector getEntrySequenceByName(const PerformanceEntryMap& performanceEntryMap, const String& name)
 {
     PerformanceEntryVector entries;
 
     PerformanceEntryMap::const_iterator it = performanceEntryMap.find(name);
     if (it != performanceEntryMap.end())
@@ skipping 25 matching lines @@
 void UserTiming::trace(Visitor* visitor)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_performance);
     visitor->trace(m_marksMap);
     visitor->trace(m_measuresMap);
 #endif
 }
 
 } // namespace blink