From bcc27d9bd01f973bf9f48c6e310e235ee02a8c99 Mon Sep 17 00:00:00 2001
From: Avi Weinstock <aweinstock314@gmail.com>
Date: Tue, 3 Mar 2015 09:06:45 -0500
Subject: [PATCH] Replace borrow with borrow_for_gc_trace in JSTraceable::trace
 (Issue #4778).

---
 components/script/dom/bindings/cell.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/bindings/cell.rs b/components/script/dom/bindings/cell.rs
index 81085256821..18ea62d7106 100644
--- a/components/script/dom/bindings/cell.rs
+++ b/components/script/dom/bindings/cell.rs
@@ -94,7 +94,9 @@ impl<T> DOMRefCell<T> {
 
 impl<T: JSTraceable> JSTraceable for DOMRefCell<T> {
     fn trace(&self, trc: *mut JSTracer) {
-        (*self).borrow().trace(trc)
+        unsafe {
+            (*self).borrow_for_gc_trace().trace(trc)
+        }
     }
 }