Implement aria-placeholder

third_party/WebKit/Source/web/WebAXObject.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 960 matching lines @@
   outDescriptionFrom = static_cast<WebAXDescriptionFrom>(descriptionFrom);
 
   WebVector<WebAXObject> webDescriptionObjects(descriptionObjects.size());
   for (size_t i = 0; i < descriptionObjects.size(); i++)
     webDescriptionObjects[i] = WebAXObject(descriptionObjects[i]);
   outDescriptionObjects.swap(webDescriptionObjects);
 
   return result;
 }
 
-WebString WebAXObject::placeholder(WebAXNameFrom nameFrom,
-                                   WebAXDescriptionFrom descriptionFrom) const {
+WebString WebAXObject::placeholder(WebAXNameFrom nameFrom) const {
   if (isDetached())
     return WebString();
 
-  return m_private->placeholder(
-      static_cast<AXNameFrom>(nameFrom),
-      static_cast<AXDescriptionFrom>(descriptionFrom));
+  return m_private->placeholder(static_cast<AXNameFrom>(nameFrom));
 }
 
 bool WebAXObject::supportsRangeValue() const {
   if (isDetached())
     return false;
 
   return m_private->supportsRangeValue();
 }
 
 WebString WebAXObject::valueDescription() const {
@@ skipping 464 matching lines @@
 WebAXObject& WebAXObject::operator=(AXObject* object) {
   m_private = object;
   return *this;
 }
 
 WebAXObject::operator AXObject*() const {
   return m_private.get();
 }
 
 }  // namespace blink