Evict "fallback" RawResource from MemoryCache

third_party/WebKit/Source/platform/loader/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 835 matching lines @@
   // mismatch, the MemoryCache must be skipped here, and a new request for the
   // resource must be made to get the raw data. This is expected to be an
   // uncommon case, however, as it implies two same-origin requests to the same
   // resource, but with different integrity metadata.
   RecordSriResourceIntegrityMismatchEvent(kCheckingForIntegrityMismatch);
   if (existing_resource->MustRefetchDueToIntegrityMetadata(fetch_params)) {
     RecordSriResourceIntegrityMismatchEvent(kRefetchDueToIntegrityMismatch);
     return kReload;
   }
 
-  // Service Worker's CORS fallback message must not be cached.
-  if (existing_resource->GetResponse().WasFallbackRequiredByServiceWorker())
-    return kReload;
-
   // If the same URL has been loaded as a different type, we need to reload.
   if (existing_resource->GetType() != type) {
     // FIXME: If existingResource is a Preload and the new type is LinkPrefetch
     // We really should discard the new prefetch since the preload has more
     // specific type information! crbug.com/379893
     // fast/dom/HTMLLinkElement/link-and-subresource-test hits this case.
     RESOURCE_LOADING_DVLOG(1) << "ResourceFetcher::determineRevalidationPolicy "
                                  "reloading due to type mismatch.";
     return kReload;
   }
@@ skipping 710 matching lines @@
   visitor->Trace(context_);
   visitor->Trace(archive_);
   visitor->Trace(loaders_);
   visitor->Trace(non_blocking_loaders_);
   visitor->Trace(document_resources_);
   visitor->Trace(preloads_);
   visitor->Trace(resource_timing_info_map_);
 }
 
 }  // namespace blink