Resource Timing: Use original Timing-Allow-Origin for cache validating

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
     License as published by the Free Software Foundation; either
@@ skipping 849 matching lines @@
     return resource;
 }
 
 void ResourceFetcher::storeResourceTimingInitiatorInformation(Resource* resource)
 {
     if (resource->options().requestInitiatorContext != DocumentContext)
         return;
 
     RefPtr<ResourceTimingInfo> info = ResourceTimingInfo::create(resource->options().initiatorInfo.name, monotonicallyIncreasingTime());
 
+    if (resource->isCacheValidator()) {
+        const AtomicString& timingAllowOrigin = resource->resourceToRevalidate()->response().httpHeaderField("Timing-Allow-Origin");
+        if (!timingAllowOrigin.isEmpty())
+            info->setOriginalTimingAllowOrigin(timingAllowOrigin);
+    }
+
     if (resource->type() == Resource::MainResource) {
         // <iframe>s should report the initial navigation requested by the parent document, but not subsequent navigations.
         if (frame()->ownerElement() && !frame()->ownerElement()->loadedNonEmptyDocument()) {
             info->setInitiatorType(frame()->ownerElement()->localName());
             m_resourceTimingInfoMap.add(resource, info);
             frame()->ownerElement()->didLoadNonEmptyDocument();
         }
     } else {
         m_resourceTimingInfoMap.add(resource, info);
     }
@@ skipping 573 matching lines @@
     }
 }
 
 void ResourceFetcher::trace(Visitor* visitor)
 {
     visitor->trace(m_document);
     ResourceLoaderHost::trace(visitor);
 }
 
 }