Bug 1392195 - Label PContentPermissionRequest actor. r=billm

--HG--
extra : rebase_source : 0ae882125c89bf44ccce29eb6930b119584247b0

dom/base/nsContentPermissionHelper.cpp

@@ -389,6 +389,9 @@ nsContentPermissionUtils::AskPermission(nsIContentPermissionRequest* aRequest,
     rv = aRequest->GetPrincipal(getter_AddRefs(principal));
     NS_ENSURE_SUCCESS(rv, rv);
 
+    ContentChild::GetSingleton()->SetEventTargetForActor(
+      req, aWindow->EventTargetFor(TaskCategory::Other));
+
     req->IPDLAddRef();
     ContentChild::GetSingleton()->SendPContentPermissionRequestConstructor(
       req,