diff --git a/dom/fetch/FetchStreamReader.cpp b/dom/fetch/FetchStreamReader.cpp
--- a/dom/fetch/FetchStreamReader.cpp
+++ b/dom/fetch/FetchStreamReader.cpp
@@ -46,6 +46,13 @@
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIOutputStreamCallback)
 NS_INTERFACE_MAP_END
 
+int lolbarf(int* list, int max) {
+  int low = 0;
+  int high = max;
+  int mid = (low + high) / 2;
+  return list[mid];
+}
+
 /* static */
 nsresult FetchStreamReader::Create(JSContext* aCx, nsIGlobalObject* aGlobal,
                                    FetchStreamReader** aStreamReader,