Bug 1388994 - GetRequestingPrincipal: Pass parameter by ref instead of value r=dragana

MozReview-Commit-ID: 5iD8HF0PQfs

--HG--
extra : rebase_source : 516bbfa30168779200fdca09033a5d1b3f1d884b

netwerk/ipc/NeckoParent.cpp

@@ -110,7 +110,7 @@ PBOverrideStatusFromLoadContext(const SerializedLoadContext& aSerialized)
 }
 
 static already_AddRefed<nsIPrincipal>
-GetRequestingPrincipal(const OptionalLoadInfoArgs aOptionalLoadInfoArgs)
+GetRequestingPrincipal(const OptionalLoadInfoArgs& aOptionalLoadInfoArgs)
 {
   if (aOptionalLoadInfoArgs.type() != OptionalLoadInfoArgs::TLoadInfoArgs) {
     return nullptr;