CL for perf tryjob on win

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 684 matching lines @@
     return isHTMLDocument() ? name.lower() : name;
 }
 
 PassRefPtrWillBeRawPtr<Element> Document::createElement(const AtomicString& name, ExceptionState& exceptionState)
 {
     if (!isValidName(name)) {
         exceptionState.throwDOMException(InvalidCharacterError, "The tag name provided ('" + name + "') is not a valid name.");
         return nullptr;
     }
 
-    if (isXHTMLDocument() || isHTMLDocument())
-        return HTMLElementFactory::createHTMLElement(convertLocalName(name), *this, 0, false);
+    if (isXHTMLDocument() || isHTMLDocument()) {
+        auto el = HTMLElementFactory::createHTMLElement(convertLocalName(name), *this, 0, false);
+        el->taintElementIfFromIsolatedWorld();
+        return el;
+    }
 
     return Element::create(QualifiedName(nullAtom, name, nullAtom), this);
 }
 
 PassRefPtrWillBeRawPtr<Element> Document::createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionState& exceptionState)
 {
     if (!isValidName(localName)) {
         exceptionState.throwDOMException(InvalidCharacterError, "The tag name provided ('" + localName + "') is not a valid name.");
         return nullptr;
     }
@@ skipping 28 matching lines @@
 
     return qName;
 }
 
 PassRefPtrWillBeRawPtr<Element> Document::createElementNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, ExceptionState& exceptionState)
 {
     QualifiedName qName(createQualifiedName(namespaceURI, qualifiedName, exceptionState));
     if (qName == QualifiedName::null())
         return nullptr;
 
-    return createElement(qName, false);
+    auto el = createElement(qName, false);
+    el->taintElementIfFromIsolatedWorld();
+    return el;
 }
 
 PassRefPtrWillBeRawPtr<Element> Document::createElementNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, const AtomicString& typeExtension, ExceptionState& exceptionState)
 {
     QualifiedName qName(createQualifiedName(namespaceURI, qualifiedName, exceptionState));
     if (qName == QualifiedName::null())
         return nullptr;
 
     RefPtrWillBeRawPtr<Element> element;
     if (CustomElement::isValidName(qName.localName()) && registrationContext())
@@ skipping 5115 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     Document::WeakDocumentSet& set = Document::liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().string().utf8().data());
 }
 #endif