Use C++11 features in core/html

Source/core/html/parser/HTMLPreloadScanner.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Torch Mobile, Inc. http://www.torchmobile.com/
  * Copyright (C) 2010 Google 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.
@@ skipping 50 matching lines @@
 {
     return threadSafeMatch(name, qName);
 }
 
 static const StringImpl* tagImplFor(const HTMLToken::DataVector& data)
 {
     AtomicString tagName(data);
     const StringImpl* result = tagName.impl();
     if (result->isStatic())
         return result;
-    return 0;
+    return nullptr;
 }
 
 static const StringImpl* tagImplFor(const String& tagName)
 {
     const StringImpl* result = tagName.impl();
     if (result->isStatic())
         return result;
-    return 0;
+    return nullptr;
 }
 
 static String initiatorFor(const StringImpl* tagImpl)
 {
     ASSERT(tagImpl);
     if (match(tagImpl, imgTag))
         return imgTag.localName();
     if (match(tagImpl, inputTag))
         return inputTag.localName();
     if (match(tagImpl, linkTag))
@@ skipping 40 matching lines @@
     enum URLReplacement {
         AllowURLReplacement,
         DisallowURLReplacement
     };
 
     void processAttributes(const HTMLToken::AttributeList& attributes)
     {
         ASSERT(isMainThread());
         if (!m_tagImpl)
             return;
-        for (HTMLToken::AttributeList::const_iterator iter = attributes.begin(); iter != attributes.end(); ++iter) {
-            AtomicString attributeName(iter->name);
-            String attributeValue = StringImpl::create8BitIfPossible(iter->value);
+        for (const HTMLToken::Attribute& htmlTokenAttribute : attributes) {
+            AtomicString attributeName(htmlTokenAttribute.name);
+            String attributeValue = StringImpl::create8BitIfPossible(htmlTokenAttribute.value);
             processAttribute(attributeName, attributeValue);
         }
     }
 
     void processAttributes(const Vector<CompactHTMLToken::Attribute>& attributes)
     {
         if (!m_tagImpl)
             return;
-        for (Vector<CompactHTMLToken::Attribute>::const_iterator iter = attributes.begin(); iter != attributes.end(); ++iter)
-            processAttribute(iter->name, iter->value);
+        for (const CompactHTMLToken::Attribute& htmlTokenAttribute : attributes)
+            processAttribute(htmlTokenAttribute.name, htmlTokenAttribute.value);
     }
 
     void handlePictureSourceURL(String& sourceURL)
     {
         if (match(m_tagImpl, sourceTag) && m_matchedMediaAttribute && sourceURL.isEmpty())
             sourceURL = m_srcsetImageCandidate.toString();
         else if (match(m_tagImpl, imgTag) && !sourceURL.isEmpty())
             setUrlToLoad(sourceURL, AllowURLReplacement);
     }
 
@@ skipping 354 matching lines @@
         if (m_token.type() == HTMLToken::StartTag)
             m_tokenizer->updateStateFor(attemptStaticStringCreation(m_token.name(), Likely8Bit));
         m_scanner.scan(m_token, m_source, requests);
         m_token.clear();
     }
 
     preloader->takeAndPreload(requests);
 }
 
 }