Pause the timeline on load in the SVGAnimationTestCase.js framework

LayoutTests/svg/animations/resources/SVGAnimationTestCase.js

Index: LayoutTests/svg/animations/resources/SVGAnimationTestCase.js
diff --git a/LayoutTests/svg/animations/resources/SVGAnimationTestCase.js b/LayoutTests/svg/animations/resources/SVGAnimationTestCase.js
index cb01b310ff727b5e1189c4b1083f2fa0d8b396e3..bdc259703767efecea076e5759204c9c85100be0 100644
--- a/LayoutTests/svg/animations/resources/SVGAnimationTestCase.js
+++ b/LayoutTests/svg/animations/resources/SVGAnimationTestCase.js
@@ -98,6 +98,11 @@ function sampleAnimation() {
 }
 
 function runSMILTest() {
+    // Pause animations, we'll drive them manually.
+    // This also ensures that the timeline is paused before it starts. This should make the instance time of the below
+    // 'click' (for instance) 0, and hence minimize rounding errors for the addition in moveAnimationTimelineAndSample.
+    rootSVGElement.pauseAnimations();
+
     // If eg. an animation is running with begin="0s", and we want to sample the first time, before the animation
     // starts, then we can't delay the testing by using an onclick event, as the animation would be past start time.
     if (window.animationStartsImmediately) {
@@ -133,9 +138,6 @@ function runAnimationTest(expected) {
         ++currentTest;
     }
 
-    // Pause animations, we'll drive them manually.
-    rootSVGElement.pauseAnimations();
-
     if (window.testRunner)
         setTimeout(sampleAnimation, 0);
     else