Code problems detected by cppcheck

Source/core/dom/ContainerNode.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 364 matching lines @@
     document().nodeWillBeRemoved(child); // e.g. mutation event listener can create a new range.
     ChildFrameDisconnector(child).disconnect();
 }
 
 void ContainerNode::willRemoveChildren()
 {
     NodeVector children;
     getChildNodes(*this, children);
 
     ChildListMutationScope mutation(*this);
-    for (NodeVector::const_iterator it = children.begin(); it != children.end(); it++) {
+    for (NodeVector::const_iterator it = children.begin(); it != children.end(); ++it) {
         ASSERT(*it);
         Node& child = **it;
         mutation.willRemoveChild(child);
         child.notifyMutationObserversNodeWillDetach();
         dispatchChildRemovalEvents(child);
     }
 
     ChildFrameDisconnector(*this).disconnect(ChildFrameDisconnector::DescendantsOnly);
 }
 
@@ skipping 581 matching lines @@
         return true;
 
     if (node->isElementNode() && toElement(node)->shadow())
         return true;
 
     return false;
 }
 #endif
 
 } // namespace WebCore