Make iterator for Element's attributes more lightweight

Source/core/html/HTMLObjectElement.cpp

Index: Source/core/html/HTMLObjectElement.cpp
diff --git a/Source/core/html/HTMLObjectElement.cpp b/Source/core/html/HTMLObjectElement.cpp
index 89f3f90feee54f5dd52806ae17c88e50197547f6..413482df0f7ff3a3fd3b7047ade4ee39f8bf0b59 100644
--- a/Source/core/html/HTMLObjectElement.cpp
+++ b/Source/core/html/HTMLObjectElement.cpp
@@ -188,9 +188,9 @@ void HTMLObjectElement::parametersForPlugin(Vector<String>& paramNames, Vector<S
 
     // Turn the attributes of the <object> element into arrays, but don't override <param> values.
     if (hasAttributes()) {
-        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) {
             const AtomicString& name = it->name().localName();
             if (!uniqueParamNames.contains(name.impl())) {
                 paramNames.append(name.string());