Auto merge of #8242 - Ms2ger:update-js, r=metajack

Update js.



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components/script/dom/bindings/utils.rs

@@ -520,7 +520,7 @@ pub fn find_enum_string_index(cx: *mut JSContext,
                               v: HandleValue,
                               values: &[&'static str])
                               -> Result<Option<usize>, ()> {
-    let jsstr = ToString(cx, v);
+    let jsstr = unsafe { ToString(cx, v) };
     if jsstr.is_null() {
         return Err(());
     }