[WeakMemoryCache] Remove LRU lists, prune order control and live/dead distinction

third_party/WebKit/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
@@ skipping 572 matching lines @@
     // Fall through
     case Load:
       resource = createResourceForLoading(request, request.charset(), factory);
       break;
     case Revalidate:
       initializeRevalidation(request.mutableResourceRequest(), resource);
       break;
     case Use:
       if (resource->isLinkPreload() && !request.isLinkPreload())
         resource->setLinkPreload(false);
-      memoryCache()->updateForAccess(resource);
       break;
   }
 
   if (!resource)
     return nullptr;
   if (resource->getType() != factory.type()) {
     DCHECK(request.forPreload());
     return nullptr;
   }
 
@@ skipping 1037 matching lines @@
   visitor->trace(m_context);
   visitor->trace(m_archive);
   visitor->trace(m_loaders);
   visitor->trace(m_nonBlockingLoaders);
   visitor->trace(m_documentResources);
   visitor->trace(m_preloads);
   visitor->trace(m_resourceTimingInfoMap);
 }
 
 }  // namespace blink