//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 b83bdbe20cefacea5af8554d82c713ea3a4f0edf..ff543c0424f1d7b3278d716bfd6cd919c00b0af4 100644
--- a/net/http/http_response_info.h
+++ b/net/http/http_response_info.h
@@ -104,6 +104,11 @@ 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),