Oilpan: have ResourceFetcher use a prefinalizer.

Source/core/fetch/ResourceFetcher.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
     Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
 
     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
@@ skipping 145 matching lines @@
 }
 
 ResourceFetcher::ResourceFetcher(FetchContext* context)
     : m_context(context)
     , m_garbageCollectDocumentResourcesTimer(this, &ResourceFetcher::garbageCollectDocumentResourcesTimerFired)
     , m_resourceTimingReportTimer(this, &ResourceFetcher::resourceTimingReportTimerFired)
     , m_autoLoadImages(true)
     , m_imagesEnabled(true)
     , m_allowStaleResources(false)
 {
+#if ENABLE(OILPAN)
+    ThreadState::current()->registerPreFinalizer(this);
+#endif
 }
 
 ResourceFetcher::~ResourceFetcher()
 {
+#if !ENABLE(OILPAN)
     clearPreloads();
+#endif
 }
 
 Resource* ResourceFetcher::cachedResource(const KURL& resourceURL) const
 {
     KURL url = MemoryCache::removeFragmentIdentifierIfNeeded(resourceURL);
     return m_documentResources.get(url).get();
 }
 
 bool ResourceFetcher::canAccessResource(Resource* resource, SecurityOrigin* sourceOrigin, const KURL& url, AccessControlLoggingDecision logErrorsDecision) const
 {
@@ skipping 889 matching lines @@
     visitor->trace(m_archiveResourceCollection);
     visitor->trace(m_loaders);
     visitor->trace(m_nonBlockingLoaders);
 #if ENABLE(OILPAN)
     visitor->trace(m_preloads);
     visitor->trace(m_resourceTimingInfoMap);
 #endif
 }
 
 }