From bd405ecc4aabce1b157331bdc00d2b3525988d9b Mon Sep 17 00:00:00 2001
From: griffpatch <griffpatch@users.noreply.github.com>
Date: Sat, 28 Jan 2017 16:43:37 +0000
Subject: [PATCH] Optimisation - Only check browser compatability once

This saves doing the checks everytime the time functions are referenced
---
 src/util/timer.js | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/src/util/timer.js b/src/util/timer.js
index 17c66a567..a0b620112 100644
--- a/src/util/timer.js
+++ b/src/util/timer.js
@@ -27,13 +27,12 @@ Timer.prototype.startTime = 0;
  * Return the currently known absolute time, in ms precision.
  * @returns {number} ms elapsed since 1 January 1970 00:00:00 UTC.
  */
-Timer.prototype.time = function () {
-    if (Date.now) {
+Timer.prototype.time = Date.now ?
+    function () {
         return Date.now();
-    } else {
+    } : function () {
         return new Date().getTime();
-    }
-};
+    };
 
 /**
  * Returns a time accurate relative to other times produced by this function.
@@ -42,14 +41,13 @@ Timer.prototype.time = function () {
  * Not guaranteed to produce the same absolute values per-system.
  * @returns {number} ms-scale accurate time relative to other relative times.
  */
-Timer.prototype.relativeTime = function () {
-    if (typeof self !== 'undefined' &&
-        self.performance && 'now' in self.performance) {
-        return self.performance.now();
-    } else {
-        return this.time();
-    }
-};
+Timer.prototype.relativeTime =
+    (typeof self !== 'undefined' && self.performance && 'now' in self.performance) ?
+        function () {
+            return self.performance.now();
+        } : function () {
+            return this.time();
+        };
 
 /**
  * Start a timer for measuring elapsed time,