Optimize hasTagName when called on an HTMLElement / SVGElement

Source/web/WebSearchableFormData.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 84 matching lines @@
     return firstSubmitButton;
 }
 
 // Returns true if the selected state of all the options matches the default
 // selected state.
 bool IsSelectInDefaultState(HTMLSelectElement* select)
 {
     const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = select->listItems();
     if (select->multiple() || select->size() > 1) {
         for (WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >::const_iterator i(listItems.begin()); i != listItems.end(); ++i) {
-            if (!(*i)->hasLocalName(HTMLNames::optionTag))
+            if (!isHTMLOptionElement(*i))
                 continue;
             HTMLOptionElement* optionElement = toHTMLOptionElement(*i);
             if (optionElement->selected() != optionElement->hasAttribute(selectedAttr))
                 return false;
         }
         return true;
     }
 
     // The select is rendered as a combobox (called menulist in WebKit). At
     // least one item is selected, determine which one.
     HTMLOptionElement* initialSelected = 0;
     for (WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >::const_iterator i(listItems.begin()); i != listItems.end(); ++i) {
-        if (!(*i)->hasLocalName(HTMLNames::optionTag))
+        if (!isHTMLOptionElement(*i))
             continue;
         HTMLOptionElement* optionElement = toHTMLOptionElement(*i);
         if (optionElement->hasAttribute(selectedAttr)) {
             // The page specified the option to select.
             initialSelected = optionElement;
             break;
         }
         if (!initialSelected)
             initialSelected = optionElement;
     }
@@ skipping 155 matching lines @@
 
     String action(formElement->action());
     KURL url(formElement->document().completeURL(action.isNull() ? "" : action));
     RefPtr<FormData> formData = FormData::create(encodedString);
     url.setQuery(formData->flattenToString());
     m_url = url;
     m_encoding = String(encoding.name());
 }
 
 } // namespace blink