Refactoring: Make ~CSSStyleSheetResource empty.

Source/core/fetch/Resource.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) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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
@@ skipping 132 matching lines @@
     assertAlive();
 
 #ifdef ENABLE_RESOURCE_IS_DELETED_CHECK
     m_deleted = true;
 #endif
 #ifndef NDEBUG
     cachedResourceLeakCounter.decrement();
 #endif
 }
 
+void Resource::dispose()
+{
+}
+
 void Resource::failBeforeStarting()
 {
     WTF_LOG(ResourceLoading, "Cannot start loading '%s'", url().string().latin1().data());
     error(Resource::LoadError);
 }
 
 void Resource::load(ResourceFetcher* fetcher, const ResourceLoaderOptions& options)
 {
     if (!fetcher->frame()) {
         failBeforeStarting();
@@ skipping 381 matching lines @@
     ResourcePtr<Resource> protect(this);
     m_loader->cancelIfNotFinishing();
     if (m_status != Cached)
         memoryCache()->remove(this);
 }
 
 bool Resource::deleteIfPossible()
 {
     if (canDelete() && !memoryCache()->contains(this)) {
         InspectorInstrumentation::willDestroyResource(this);
+        dispose();
         delete this;
         return true;
     }
     return false;
 }
 
 void Resource::setDecodedSize(size_t decodedSize)
 {
     if (decodedSize == m_decodedSize)
         return;
@@ skipping 426 matching lines @@
         return "ImportResource";
     case Resource::Media:
         return "Media";
     }
     ASSERT_NOT_REACHED();
     return "Unknown";
 }
 #endif // !LOG_DISABLED
 
 }