Fix various inner classes now identified by the Blink GC plugin.

Source/core/css/MediaQueryMatcher.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  *  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 19 matching lines @@
 #include "core/frame/LocalFrame.h"
 
 namespace WebCore {
 
 MediaQueryMatcher::Listener::Listener(PassRefPtrWillBeRawPtr<MediaQueryListListener> listener, PassRefPtrWillBeRawPtr<MediaQueryList> query)
     : m_listener(listener)
     , m_query(query)
 {
 }
 
-MediaQueryMatcher::Listener::~Listener()
-{
-}
-
 void MediaQueryMatcher::Listener::evaluate(ScriptState* state, MediaQueryEvaluator* evaluator)
 {
     bool notify;
     m_query->evaluate(evaluator, notify);
     if (notify)
         m_listener->queryChanged(state, m_query.get());
 }
 
 void MediaQueryMatcher::Listener::trace(Visitor* visitor)
 {
@@ skipping 106 matching lines @@
 void MediaQueryMatcher::trace(Visitor* visitor)
 {
     // We don't support tracing of vectors of OwnPtrs (ie. Vector<OwnPtr<Listener> >).
     // Since this is a transitional object we are just ifdef'ing it out when oilpan is not enabled.
 #if ENABLE(OILPAN)
     visitor->trace(m_listeners);
 #endif
 }
 
 }