Cleanup ResourceLoadPriority setting

Source/core/fetch/ResourceFetcher.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@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
     version 2 of the License, or (at your option) any later version.
@@ skipping 155 matching lines @@
     static bool resourceNeedsLoad(Resource*, const FetchRequest&, RevalidationPolicy);
 
     void garbageCollectDocumentResourcesTimerFired(Timer<ResourceFetcher>*);
 
     void resourceTimingReportTimerFired(Timer<ResourceFetcher>*);
 
     void reloadImagesIfNotDeferred();
 
     void willTerminateResourceLoader(ResourceLoader*);
 
+    ResourceLoadPriority modifyPriorityForExperiments(ResourceLoadPriority, Resource::Type, const FetchRequest&);
+
     Member<FetchContext> m_context;
 
     HashSet<String> m_validatedURLs;
     mutable DocumentResourceMap m_documentResources;
 
     // We intentionally use a Member instead of a ResourcePtr.
     // Using a ResourcePtrs can lead to a wrong behavior because
     // the underlying Resource of the ResourcePtr is updated when the Resource
     // is revalidated. What we really want to hold here is not the ResourcePtr
     // but the underlying Resource.
@@ skipping 26 matching lines @@
         int m_useCount;
         int m_revalidateCount;
         int m_loadCount;
     };
     DeadResourceStatsRecorder m_deadStatsRecorder;
 
     // 28 bits left
     bool m_autoLoadImages : 1;
     bool m_imagesEnabled : 1;
     bool m_allowStaleResources : 1;
-    bool m_imageFetched : 1;
 };
 
 class ResourceCacheValidationSuppressor {
     WTF_MAKE_NONCOPYABLE(ResourceCacheValidationSuppressor);
     STACK_ALLOCATED();
 public:
     ResourceCacheValidationSuppressor(ResourceFetcher* loader)
         : m_loader(loader)
         , m_previousState(false)
     {
         if (m_loader) {
             m_previousState = m_loader->m_allowStaleResources;
             m_loader->m_allowStaleResources = true;
         }
     }
     ~ResourceCacheValidationSuppressor()
     {
         if (m_loader)
             m_loader->m_allowStaleResources = m_previousState;
     }
 private:
     Member<ResourceFetcher> m_loader;
     bool m_previousState;
 };
 
 } // namespace blink
 
 #endif // ResourceFetcher_h