Make iterator for Element's attributes more lightweight

Source/core/html/HTMLEmbedElement.cpp

Index: Source/core/html/HTMLEmbedElement.cpp
diff --git a/Source/core/html/HTMLEmbedElement.cpp b/Source/core/html/HTMLEmbedElement.cpp
index 0fa70ed2505b76ae4566b2c1c894c2ccacde535c..99e3467a03fc8bebb052b4cf9c475f22b06e7ccc 100644
--- a/Source/core/html/HTMLEmbedElement.cpp
+++ b/Source/core/html/HTMLEmbedElement.cpp
@@ -115,9 +115,9 @@ void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<St
     if (!hasAttributes())
         return;
 
-    AttributeIteratorAccessor attributes = attributesIterator();
-    AttributeConstIterator end = attributes.end();
-    for (AttributeConstIterator it = attributes.begin(); it != end; ++it) {
+    AttributeCollection attributes = this->attributes();
+    AttributeCollection::const_iterator end = attributes.end();
+    for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) {
         paramNames.append(it->localName().string());
         paramValues.append(it->value().string());
     }