MemoryCache: make sure that Resources are evicted only when they can be deleted

Source/core/fetch/ResourceFetcher.cpp

Index: Source/core/fetch/ResourceFetcher.cpp
diff --git a/Source/core/fetch/ResourceFetcher.cpp b/Source/core/fetch/ResourceFetcher.cpp
index a22a05e20d516255e3de30262b643339fc2336bb..c2501b9e779407b98a6610f503d981f7b3deb39e 100644
--- a/Source/core/fetch/ResourceFetcher.cpp
+++ b/Source/core/fetch/ResourceFetcher.cpp
@@ -1072,7 +1072,7 @@ void ResourceFetcher::garbageCollectDocumentResources()
     StringVector resourcesToDelete;
 
     for (DocumentResourceMap::iterator it = m_documentResources.begin(); it != m_documentResources.end(); ++it) {
-        if (it->value->hasOneHandle())
+        if (it->value->hasOneHandleApartFromCache())
             resourcesToDelete.append(it->key);
     }