Revert of id of iframe incorrectly sets window name

Source/core/html/HTMLFrameElementBase.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann (hausmann@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 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
@@ skipping 119 matching lines @@
     else if (name == onbeforeunloadAttr) {
         // FIXME: should <frame> elements have beforeunload handlers?
         setAttributeEventListener(EventTypeNames::beforeunload, createAttributeEventListener(this, name, value));
     } else
         HTMLFrameOwnerElement::parseAttribute(name, value);
 }
 
 void HTMLFrameElementBase::setNameAndOpenURL()
 {
     m_frameName = getNameAttribute();
+    if (m_frameName.isNull())
+        m_frameName = getIdAttribute();
     openURL();
 }
 
 Node::InsertionNotificationRequest HTMLFrameElementBase::insertedInto(ContainerNode* insertionPoint)
 {
     HTMLFrameOwnerElement::insertedInto(insertionPoint);
     return InsertionShouldCallDidNotifySubtreeInsertions;
 }
 
 void HTMLFrameElementBase::didNotifySubtreeInsertionsToDocument()
@@ skipping 74 matching lines @@
 
 int HTMLFrameElementBase::height()
 {
     document().updateLayoutIgnorePendingStylesheets();
     if (!renderBox())
         return 0;
     return renderBox()->height();
 }
 
 } // namespace WebCore