Revert 179491 due to performance regression.

chrome/renderer/autofill/form_autofill_util.cc

Index: chrome/renderer/autofill/form_autofill_util.cc
===================================================================
--- chrome/renderer/autofill/form_autofill_util.cc	(revision 179750)
+++ chrome/renderer/autofill/form_autofill_util.cc	(working copy)
@@ -574,14 +574,21 @@
 }
 
 bool IsCheckableElement(const WebInputElement* element) {
+  // Is static for improving performance.
+  CR_DEFINE_STATIC_LOCAL(WebString, kRadio, ("radio"));
+  CR_DEFINE_STATIC_LOCAL(WebString, kCheckbox, ("checkbox"));
+
   if (!element)
     return false;
 
-  return element->isCheckbox() || element->isRadioButton();
+  WebString formControlType = element->formControlType();
+  return formControlType == kCheckbox || formControlType == kRadio;
 }
 
 bool IsAutofillableInputElement(const WebInputElement* element) {
-  return IsTextInput(element) || IsCheckableElement(element);
+  // TODO(ramankk): Uncomment IsCheckableElement part once we have solution
+  // for the observed performance regression.
+  return IsTextInput(element); // || IsCheckableElement(element);
 }
 
 const string16 GetFormIdentifier(const WebFormElement& form) {