1 files changed, 6 insertions, 0 deletions
diff --git a/dom/performance/PerformanceResourceTiming.h b/dom/performance/PerformanceResourceTiming.h
index 2dd6b4a06..c2e6c0972 100644
--- a/dom/performance/PerformanceResourceTiming.h
+++ b/dom/performance/PerformanceResourceTiming.h
@@ -62,6 +62,12 @@ public:
     mNextHopProtocol = aNextHopProtocol;
   }
 
+  DOMHighResTimeStamp WorkerStart() const {
+    return mTiming && mTiming->TimingAllowed()
+        ? mTiming->WorkerStartHighRes()
+        : 0;
+  }
+
   DOMHighResTimeStamp FetchStart() const {
     return mTiming
         ? mTiming->FetchStartHighRes()