Remove an unused function from MemoryCache.

third_party/WebKit/Source/core/fetch/MemoryCache.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 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
     version 2 of the License, or (at your option) any later version.
@@ skipping 158 matching lines @@
     ASSERT(WTF::isMainThread());
     ASSERT(resource->url().isValid());
     ResourceMap* resources = ensureResourceMap(resource->cacheIdentifier());
     RELEASE_ASSERT(!resources->contains(resource->url()));
     resources->set(resource->url(), MemoryCacheEntry::create(resource));
     update(resource, 0, resource->size(), true);
 
     WTF_LOG(ResourceLoading, "MemoryCache::add Added '%s', resource %p\n", resource->url().string().latin1().data(), resource);
 }
 
-void MemoryCache::replace(Resource* newResource, Resource* oldResource)
-{
-    ASSERT(newResource->cacheIdentifier() == oldResource->cacheIdentifier());
-    ResourceMap* resources = ensureResourceMap(oldResource->cacheIdentifier());
-    if (MemoryCacheEntry* oldEntry = resources->get(oldResource->url()))
-        evict(oldEntry);
-    add(newResource);
-    if (newResource->decodedSize() && newResource->hasClients())
-        insertInLiveDecodedResourcesList(resources->get(newResource->url()));
-}
-
 void MemoryCache::remove(Resource* resource)
 {
     // The resource may have already been removed by someone other than our caller,
     // who needed a fresh copy for a reload.
     if (MemoryCacheEntry* entry = getEntryForResource(resource))
         evict(entry);
 }
 
 bool MemoryCache::contains(const Resource* resource) const
 {
@@ skipping 647 matching lines @@
                 printf("(%.1fK, %.1fK, %uA, %dR, %d, %d); ", currentResource->decodedSize() / 1024.0f, (currentResource->encodedSize() + currentResource->overheadSize()) / 1024.0f, current->m_accessCount, currentResource->hasClients(), currentResource->isPurgeable(), currentResource->wasPurged());
 
             current = current->m_previousInAllResourcesList;
         }
     }
 }
 
 #endif // MEMORY_CACHE_STATS
 
 } // namespace blink