Simpler return value of HashTable::add/HashMap:add and others

Source/core/html/forms/CheckedRadioButtons.cpp

 /*
  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 175 matching lines @@
 
 void CheckedRadioButtons::addButton(HTMLInputElement* element)
 {
     ASSERT(element->isRadioButton());
     if (element->name().isEmpty())
         return;
 
     if (!m_nameToGroupMap)
         m_nameToGroupMap = adoptPtr(new NameToGroupMap);
 
-    OwnPtr<RadioButtonGroup>& group = m_nameToGroupMap->add(element->name(), PassOwnPtr<RadioButtonGroup>()).iterator->value;
+    OwnPtr<RadioButtonGroup>& group = m_nameToGroupMap->add(element->name(), PassOwnPtr<RadioButtonGroup>()).storedValue->value;
     if (!group)
         group = RadioButtonGroup::create();
     group->add(element);
 }
 
 void CheckedRadioButtons::updateCheckedState(HTMLInputElement* element)
 {
     ASSERT(element->isRadioButton());
     if (element->name().isEmpty())
         return;
@@ skipping 51 matching lines @@
     group->remove(element);
     if (group->isEmpty()) {
         // We don't remove an empty RadioButtonGroup from m_nameToGroupMap for
         // better performance.
         ASSERT(!group->isRequired());
         ASSERT_WITH_SECURITY_IMPLICATION(!group->checkedButton());
     }
 }
 
 } // namespace