From 4db270f6c80f0d5e75175b785e21189bb5e68deb Mon Sep 17 00:00:00 2001
From: Boris Zbarsky <bzbarsky@mit.edu>
Date: Thu, 1 Dec 2011 03:51:22 +0000
Subject: [PATCH] Bug 706323.  Fix scrollbar smoothscrolling to get the
 timestamp the new way.  r=dao

---
 toolkit/content/widgets/scrollbox.xml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/toolkit/content/widgets/scrollbox.xml b/toolkit/content/widgets/scrollbox.xml
index c4c0e86ccd11..5530ed1ad2db 100644
--- a/toolkit/content/widgets/scrollbox.xml
+++ b/toolkit/content/widgets/scrollbox.xml
@@ -287,12 +287,12 @@
         stop: function scrollAnim_stop() {
           this.started = false;
         },
-        sample: function scrollAnim_handleEvent(event) {
+        sample: function scrollAnim_handleEvent(timeStamp) {
           if (!this.started) {
             // We've been stopped
             return;
           }
-          const timePassed = event.timeStamp - this.startTime;
+          const timePassed = timeStamp - this.startTime;
           const pos = timePassed >= this.duration ? 1 :
                       1 - Math.pow(1 - timePassed / this.duration, 4);
 
@@ -656,14 +656,14 @@
         stop: function arrowSmoothScroll_stop() {
           this.started = false;
         },
-        sample: function arrowSmoothScroll_handleEvent(event) {
+        sample: function arrowSmoothScroll_handleEvent(timeStamp) {
           if (!this.started) {
             // We've been stopped
             return;
           }
           const scrollIndex = this.scrollbox._scrollIndex;
-          const timePassed = event.timeStamp - this.lastFrameTime;
-          this.lastFrameTime = event.timeStamp;
+          const timePassed = timeStamp - this.lastFrameTime;
+          this.lastFrameTime = timeStamp;
           
           const scrollDelta = 0.5 * timePassed * scrollIndex;
           this.scrollbox.scrollPosition += scrollDelta;