Use C++11 features in core/html

Source/core/html/parser/HTMLParserIdioms.cpp

Index: Source/core/html/parser/HTMLParserIdioms.cpp
diff --git a/Source/core/html/parser/HTMLParserIdioms.cpp b/Source/core/html/parser/HTMLParserIdioms.cpp
index 7650fa88c4bcf46f632c36bed02d1d09e47fe43b..5f096a64356f50d5206f6ff7f4b6f07e40b90c4f 100644
--- a/Source/core/html/parser/HTMLParserIdioms.cpp
+++ b/Source/core/html/parser/HTMLParserIdioms.cpp
@@ -325,9 +325,9 @@ WTF::TextEncoding encodingFromMetaAttributes(const HTMLAttributeList& attributes
     Mode mode = None;
     String charset;
 
-    for (HTMLAttributeList::const_iterator iter = attributes.begin(); iter != attributes.end(); ++iter) {
-        const String& attributeName = iter->first;
-        const String& attributeValue = AtomicString(iter->second);
+    for (const auto& htmlAttribute : attributes) {
+        const String& attributeName = htmlAttribute.first;
+        const String& attributeValue = AtomicString(htmlAttribute.second);
 
         if (threadSafeMatch(attributeName, http_equivAttr)) {
             if (equalIgnoringCase(attributeValue, "content-type"))