Merge "[Resource Timing] Fix potential double free problem"

Source/core/loader/cache/ResourceFetcher.cpp

Index: Source/core/loader/cache/ResourceFetcher.cpp
===================================================================
--- Source/core/loader/cache/ResourceFetcher.cpp	(revision 157834)
+++ Source/core/loader/cache/ResourceFetcher.cpp	(working copy)
@@ -952,12 +952,12 @@
                 initiatorDocument = document()->parentDocument();
             ASSERT(initiatorDocument);
             RefPtr<ResourceTimingInfo> info = it->value;
+            m_resourceTimingInfoMap.remove(it);
             info->setInitialRequest(resource->resourceRequest());
             info->setFinalResponse(resource->response());
             info->setLoadFinishTime(resource->loadFinishTime());
             if (DOMWindow* initiatorWindow = initiatorDocument->domWindow())
                 initiatorWindow->performance()->addResourceTiming(*info, initiatorDocument);
-            m_resourceTimingInfoMap.remove(it);
         }
     }