Stops using SYSTEM_STATE_INDETERMINATE as it makes radio buttons appear to have a mixed state.

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 295 matching lines @@
 }
 
 bool WebAXObject::isHovered() const
 {
     if (isDetached())
         return false;
 
     return m_private->isHovered();
 }
 
-bool WebAXObject::isIndeterminate() const
-{
-    if (isDetached())
-        return false;
-
-    return m_private->isIndeterminate();
-}
-
 bool WebAXObject::isLinked() const
 {
     if (isDetached())
         return false;
 
     return m_private->isLinked();
 }
 
 bool WebAXObject::isLoaded() const
 {
@@ skipping 1183 matching lines @@
     m_private = object;
     return *this;
 }
 
 WebAXObject::operator AXObject*() const
 {
     return m_private.get();
 }
 
 } // namespace blink