[Autofill] Respect the autocomplete=off attribute.

third_party/WebKit/Source/web/WebFormControlElement.cpp

 /*
  * Copyright (C) 2010 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 65 matching lines @@
 {
     return constUnwrap<HTMLFormControlElement>()->nameForAutofill();
 }
 
 bool WebFormControlElement::autoComplete() const
 {
     if (isHTMLInputElement(*m_private))
         return constUnwrap<HTMLInputElement>()->shouldAutocomplete();
     if (isHTMLTextAreaElement(*m_private))
         return constUnwrap<HTMLTextAreaElement>()->shouldAutocomplete();
+    if (isHTMLSelectElement(*m_private))
+        return constUnwrap<HTMLSelectElement>()->shouldAutocomplete();
     return false;
 }
 
 void WebFormControlElement::setValue(const WebString& value, bool sendEvents)
 {
     if (isHTMLInputElement(*m_private))
         unwrap<HTMLInputElement>()->setValue(value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
     else if (isHTMLTextAreaElement(*m_private))
         unwrap<HTMLTextAreaElement>()->setValue(value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
     else if (isHTMLSelectElement(*m_private))
@@ skipping 91 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebFormControlElement::operator PassRefPtrWillBeRawPtr<HTMLFormControlElement>() const
 {
     return toHTMLFormControlElement(m_private.get());
 }
 
 } // namespace blink