//net changes for stale-while-revalidate

net/http/http_cache_transaction.cc

Index: net/http/http_cache_transaction.cc
diff --git a/net/http/http_cache_transaction.cc b/net/http/http_cache_transaction.cc
index 84c7f4ff76c0bc79d41ba21dd0a3a70ef0f726bb..57a81e2bcbf1ea4f11ddd6a9cdb63258656ea421 100644
--- a/net/http/http_cache_transaction.cc
+++ b/net/http/http_cache_transaction.cc
@@ -2119,6 +2119,13 @@ int HttpCache::Transaction::BeginCacheValidation() {
 
   bool skip_validation = (required_validation == VALIDATION_NONE);
 
+  if ((effective_load_flags_ & LOAD_SUPPORT_ASYNC_REVALIDATION) &&
+      required_validation == VALIDATION_ASYNCHRONOUS) {
+    DCHECK_EQ("GET", request_->method);
+    skip_validation = true;
+    response_.async_revalidation_required = true;
+  }
+
   if (request_->method == "HEAD" &&
       (truncated_ || response_.headers->response_code() == 206)) {
     DCHECK(!partial_);