Bug 1540117 - Part 1: Do not generate a console warning when we reject an attempt to retrieve a cookie for a host that has none stored; r=baku

Differential Revision: https://phabricator.services.mozilla.com/D43270

--HG--
extra : moz-landing-system : lando

netwerk/cookie/nsCookieService.cpp

@@ -3035,7 +3035,10 @@ void nsCookieService::GetCookiesForURI(
   // (but not if there was an error)
   switch (cookieStatus) {
     case STATUS_REJECTED:
-      NotifyRejected(aHostURI, aChannel, rejectedReason, OPERATION_READ);
+      // If we don't have any cookies from this host, fail silently.
+      if (priorCookieCount) {
+        NotifyRejected(aHostURI, aChannel, rejectedReason, OPERATION_READ);
+      }
       return;
     default:
       break;