1 files changed, 7 insertions, 0 deletions
diff --git a/dom/performance/Performance.cpp b/dom/performance/Performance.cpp
index d1547dc06..8f6a61c85 100755
--- a/dom/performance/Performance.cpp
+++ b/dom/performance/Performance.cpp
@@ -121,6 +121,13 @@ Performance::~Performance()
 {}
 
 DOMHighResTimeStamp
+Performance::Now() const
+{
+  TimeDuration duration = TimeStamp::Now() - CreationTimeStamp();
+  return RoundTime(duration.ToMilliseconds());
+}
+
+DOMHighResTimeStamp
 Performance::TimeOrigin()
 {
   if (!mPerformanceService) {