[v8 gc] Introduce a base class for all objects that can have pending activity

third_party/WebKit/Source/core/css/MediaQueryList.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 17 matching lines @@
 namespace blink {
 
 PassRefPtrWillBeRawPtr<MediaQueryList> MediaQueryList::create(ExecutionContext* context, PassRefPtrWillBeRawPtr<MediaQueryMatcher> matcher, PassRefPtrWillBeRawPtr<MediaQuerySet> media)
 {
     RefPtrWillBeRawPtr<MediaQueryList> list = adoptRefWillBeNoop(new MediaQueryList(context, matcher, media));
     list->suspendIfNeeded();
     return list.release();
 }
 
 MediaQueryList::MediaQueryList(ExecutionContext* context, PassRefPtrWillBeRawPtr<MediaQueryMatcher> matcher, PassRefPtrWillBeRawPtr<MediaQuerySet> media)
-    : ActiveDOMObject(context)
+    : ActiveScriptWrappable(this)
+    , ActiveDOMObject(context)
     , m_matcher(matcher)
     , m_media(media)
     , m_matchesDirty(true)
     , m_matches(false)
 {
     m_matcher->addMediaQueryList(this);
     updateMatches();
 }
 
 MediaQueryList::~MediaQueryList()
@@ skipping 96 matching lines @@
 {
     return EventTargetNames::MediaQueryList;
 }
 
 ExecutionContext* MediaQueryList::getExecutionContext() const
 {
     return ActiveDOMObject::getExecutionContext();
 }
 
 } // namespace blink