//net changes for stale-while-revalidate

net/http/http_response_info.h

Index: net/http/http_response_info.h
diff --git a/net/http/http_response_info.h b/net/http/http_response_info.h
index 1ce64f82698bb0b43703916b47011a5f7b0f1022..dd1b3da351e39e4d88710845d416bf2e6993f416 100644
--- a/net/http/http_response_info.h
+++ b/net/http/http_response_info.h
@@ -106,6 +106,11 @@ class NET_EXPORT HttpResponseInfo {
   // used since.
   bool unused_since_prefetch;
 
+  // True if this resource is stale and requires async revalidation.
+  // This value is not persisted by Persist(); it is only ever set when the
+  // response is retrieved from the cache.
+  bool async_revalidation_required;
+
   // Remote address of the socket which fetched this resource.
   //
   // NOTE: If the response was served from the cache (was_cached is true),