Consistently cache ElementData::length() before loops

Source/core/html/HTMLEmbedElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 97 matching lines @@
     } else {
         HTMLPlugInElement::parseAttribute(name, value);
     }
 }
 
 void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues)
 {
     if (!hasAttributes())
         return;
 
-    for (unsigned i = 0; i < attributeCount(); ++i) {
+    unsigned attributeCount = this->attributeCount();
+    for (unsigned i = 0; i < attributeCount; ++i) {
         const Attribute* attribute = attributeItem(i);
         paramNames.append(attribute->localName().string());
         paramValues.append(attribute->value().string());
     }
 }
 
 // FIXME: This should be unified with HTMLObjectElement::updateWidget and
 // moved down into HTMLPluginElement.cpp
 void HTMLEmbedElement::updateWidgetInternal()
 {
@@ skipping 73 matching lines @@
 {
     // http://www.whatwg.org/specs/web-apps/current-work/#exposed
     for (Node* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode()) {
         if (ancestor->hasTagName(objectTag) && toHTMLObjectElement(ancestor)->isExposed())
             return false;
     }
     return true;
 }
 
 }