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 f82d3bdf28d6933f57d241eaf6c145e02a9cdb3d..64f68b1e04cf38e00a9ff9cc77935d07d91d6e7e 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);
     }