Use TreeScope::completeURL and baseURL instead of the Document versions

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2842 matching lines @@
 }
 
 KURL Element::getURLAttribute(const QualifiedName& name) const
 {
 #if !ASSERT_DISABLED
     if (elementData()) {
         if (const Attribute* attribute = getAttributeItem(name))
             ASSERT(isURLAttribute(*attribute));
     }
 #endif
-    return document().completeURL(stripLeadingAndTrailingHTMLSpaces(getAttribute(name)));
+    return treeScope().completeURL(stripLeadingAndTrailingHTMLSpaces(getAttribute(name)));
 }
 
 KURL Element::getNonEmptyURLAttribute(const QualifiedName& name) const
 {
 #if !ASSERT_DISABLED
     if (elementData()) {
         if (const Attribute* attribute = getAttributeItem(name))
             ASSERT(isURLAttribute(*attribute));
     }
 #endif
     String value = stripLeadingAndTrailingHTMLSpaces(getAttribute(name));
     if (value.isEmpty())
         return KURL();
-    return document().completeURL(value);
+    return treeScope().completeURL(value);
 }
 
 int Element::getIntegralAttribute(const QualifiedName& attributeName) const
 {
     return getAttribute(attributeName).string().toInt();
 }
 
 void Element::setIntegralAttribute(const QualifiedName& attributeName, int value)
 {
     setAttribute(attributeName, AtomicString::number(value));
@@ skipping 749 matching lines @@
     // Before doing so, we need to resolve issues in HTMLSelectElement::recalcListItems
     // and RenderMenuList::setText. See also https://bugs.webkit.org/show_bug.cgi?id=88405
     if (hasTagName(optionTag) || hasTagName(optgroupTag))
         return false;
     if (FullscreenElementStack::isActiveFullScreenElement(this))
         return false;
     return true;
 }
 
 } // namespace WebCore