Revert 148069 and 148060 to see if they were responsible for a perf regression

Source/WebCore/loader/DocumentLoader.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
@@ skipping 139 matching lines @@
         void setDefersLoading(bool);
         void setMainResourceDataBufferingPolicy(DataBufferingPolicy);
 
         void startLoadingMainResource();
         void cancelMainResourceLoad(const ResourceError&);
 
         bool isLoadingMainResource() const { return m_loadingMainResource; }
         bool isLoadingMultipartContent() const { return m_isLoadingMultipartContent; }
 
         void stopLoadingSubresources();
-        void addResourceLoader(ResourceLoader*);
-        void removeResourceLoader(ResourceLoader*);
+        void addSubresourceLoader(ResourceLoader*);
+        void removeSubresourceLoader(ResourceLoader*);
 
         void subresourceLoaderFinishedLoadingOnePart(ResourceLoader*);
 
         void setDeferMainResourceDataLoad(bool defer) { m_deferMainResourceDataLoad = defer; }
         
         void didTellClientAboutLoad(const String& url)
         { 
             // Don't include data urls here, as if a lot of data is loaded
             // that way, we hold on to the (large) url string for too long.
             if (protocolIs(url, "data"))
@@ skipping 69 matching lines @@
         void handleSubstituteDataLoadNow(DocumentLoaderTimer*);
         void startDataLoadTimer();
 
         void deliverSubstituteResourcesAfterDelay();
         void substituteResourceDeliveryTimerFired(Timer<DocumentLoader>*);
                 
         Frame* m_frame;
         RefPtr<CachedResourceLoader> m_cachedResourceLoader;
 
         CachedResourceHandle<CachedRawResource> m_mainResource;
-        ResourceLoaderSet m_resourceLoaders;
-        ResourceLoaderSet m_multipartResourceLoaders;
+        ResourceLoaderSet m_subresourceLoaders;
+        ResourceLoaderSet m_multipartSubresourceLoaders;
         
         mutable DocumentWriter m_writer;
 
         // A reference to actual request used to create the data source.
         // This should only be used by the resourceLoadDelegate's
         // identifierForInitialRequest:fromDatasource: method. It is
         // not guaranteed to remain unchanged, as requests are mutable.
         ResourceRequest m_originalRequest;   
 
         SubstituteData m_substituteData;
@@ skipping 64 matching lines @@
 
     inline void DocumentLoader::takeMemoryCacheLoadsForClientNotification(Vector<String>& loadsSet)
     {
         loadsSet.swap(m_resourcesLoadedFromMemoryCacheForClientNotification);
         m_resourcesLoadedFromMemoryCacheForClientNotification.clear();
     }
 
 }
 
 #endif // DocumentLoader_h