Remove attributeCount() / attributeAt() API from Element

Source/web/WebElement.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 87 matching lines @@
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliverCustomElementCallbacks;
     TrackExceptionState exceptionState;
     unwrap<Element>()->setAttribute(attrName, attrValue, exceptionState);
     return !exceptionState.hadException();
 }
 
 unsigned WebElement::attributeCount() const
 {
     if (!constUnwrap<Element>()->hasAttributes())
         return 0;
-    return constUnwrap<Element>()->attributeCount();
+    return constUnwrap<Element>()->attributes().size();
 }
 
 WebNode WebElement::shadowRoot() const
 {
     ShadowRoot* shadowRoot = constUnwrap<Element>()->shadowRoot();
     if (!shadowRoot)
         return WebNode();
     return WebNode(shadowRoot->toNode());
 }
 
 WebString WebElement::attributeLocalName(unsigned index) const
 {
     if (index >= attributeCount())
         return WebString();
-    return constUnwrap<Element>()->attributeAt(index).localName();
+    return constUnwrap<Element>()->attributes().at(index).localName();
 }
 
 WebString WebElement::attributeValue(unsigned index) const
 {
     if (index >= attributeCount())
         return WebString();
-    return constUnwrap<Element>()->attributeAt(index).value();
+    return constUnwrap<Element>()->attributes().at(index).value();
 }
 
 WebString WebElement::innerText()
 {
     return unwrap<Element>()->innerText();
 }
 
 WebString WebElement::computeInheritedLanguage() const
 {
     return WebString(constUnwrap<Element>()->computeInheritedLanguage());
@@ skipping 35 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebElement::operator PassRefPtrWillBeRawPtr<Element>() const
 {
     return toElement(m_private.get());
 }
 
 } // namespace blink