Move parts of core/dom to C++11

Source/core/dom/DocumentParser.cpp

 /*
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 48 matching lines @@
 #endif
 }
 
 void DocumentParser::setDecoder(PassOwnPtr<TextResourceDecoder>)
 {
     ASSERT_NOT_REACHED();
 }
 
 TextResourceDecoder* DocumentParser::decoder()
 {
-    return 0;
+    return nullptr;
 }
 
 void DocumentParser::prepareToStopParsing()
 {
     ASSERT(m_state == ParsingState);
     m_state = StoppingState;
 }
 
 void DocumentParser::stopParsing()
 {
     m_state = StoppedState;
 
     // Clients may be removed while in the loop. Make a snapshot for iteration.
-    WillBeHeapVector<RawPtrWillBeMember<DocumentParserClient> > clientsSnapshot;
+    WillBeHeapVector<RawPtrWillBeMember<DocumentParserClient>> clientsSnapshot;
     copyToVector(m_clients, clientsSnapshot);
 
-    for (WillBeHeapVector<RawPtrWillBeMember<DocumentParserClient> >::const_iterator it = clientsSnapshot.begin(), itEnd = clientsSnapshot.end(); it != itEnd; ++it) {
-        DocumentParserClient* client = *it;
+    for (DocumentParserClient* client : clientsSnapshot) {
         if (!m_clients.contains(client))
             continue;
 
         client->notifyParserStopped();
     }
 }
 
 void DocumentParser::detach()
 {
     m_state = DetachedState;
@@ skipping 13 matching lines @@
     m_clients.add(client);
 }
 
 void DocumentParser::removeClient(DocumentParserClient* client)
 {
     m_clients.remove(client);
 }
 
 };