Use C++11 range-based loop for core/css

Source/core/css/FontLoader.cpp

 // 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 "config.h"
 #include "core/css/FontLoader.h"
 
 #include "core/css/CSSFontSelector.h"
 #include "core/fetch/FontResource.h"
 #include "core/fetch/ResourceFetcher.h"
@@ skipping 37 matching lines @@
 {
     loadPendingFonts();
 }
 
 void FontLoader::loadPendingFonts()
 {
     ASSERT(m_resourceFetcher);
 
     FontsToLoadVector fontsToBeginLoading;
     fontsToBeginLoading.swap(m_fontsToBeginLoading);
-    for (FontsToLoadVector::iterator it = fontsToBeginLoading.begin(); it != fontsToBeginLoading.end(); ++it) {
-        FontResource* fontResource = it->first.get();
+    for (const auto& item : fontsToBeginLoading) {
+        FontResource* fontResource = item.first.get();
         fontResource->beginLoadIfNeeded(m_resourceFetcher);
     }
 
     // When the local fontsToBeginLoading vector goes out of scope it will
     // decrement the request counts on the ResourceFetcher for all the fonts
     // that were just loaded.
 }
 
 void FontLoader::fontFaceInvalidated()
 {
@@ skipping 11 matching lines @@
 
     m_beginLoadingTimer.stop();
     clearPendingFonts();
     m_resourceFetcher = nullptr;
     m_fontSelector = nullptr;
 }
 #endif
 
 void FontLoader::clearPendingFonts()
 {
-    for (FontsToLoadVector::iterator it = m_fontsToBeginLoading.begin(); it != m_fontsToBeginLoading.end(); ++it)
-        it->first->didUnscheduleLoad();
+    for (const auto& item : m_fontsToBeginLoading)
+        item.first->didUnscheduleLoad();
     m_fontsToBeginLoading.clear();
 }
 
 void FontLoader::trace(Visitor* visitor)
 {
     visitor->trace(m_resourceFetcher);
     visitor->trace(m_fontSelector);
 }
 
 } // namespace blink