Disable <meta> tag in a shadow tree

third_party/WebKit/Source/core/html/HTMLMetaElement.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) 2003, 2010 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 441 matching lines @@
 }
 
 static bool inDocumentHead(HTMLMetaElement* element) {
   if (!element->isConnected())
     return false;
 
   return Traversal<HTMLHeadElement>::firstAncestor(*element);
 }
 
 void HTMLMetaElement::process() {
-  if (!isConnected())
+  if (!isInDocumentTree())
     return;
 
   // All below situations require a content attribute (which can be the empty
   // string).
   const AtomicString& contentValue = fastGetAttribute(contentAttr);
   if (contentValue.isNull())
     return;
 
   const AtomicString& nameValue = fastGetAttribute(nameAttr);
   if (!nameValue.isEmpty()) {
@@ skipping 39 matching lines @@
 }
 
 const AtomicString& HTMLMetaElement::httpEquiv() const {
   return getAttribute(http_equivAttr);
 }
 
 const AtomicString& HTMLMetaElement::name() const {
   return getNameAttribute();
 }
 }