Add passive: false to touch_scheduling_cases to avoid interventions.

tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html

Index: tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html
diff --git a/tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html b/tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html
index c2757f237134b976c95a7d758c5ea18c0f55dcf5..2e199d666d7b7ff5200bc29fbc809affe339d6b4 100644
--- a/tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html
+++ b/tools/perf/page_sets/tough_scheduling_cases/raf_touch_animation.html
@@ -59,12 +59,13 @@
 
     function startExperiment() {
       g_status = document.getElementById('status');
-      window.addEventListener('touchstart', onTouchStart);
-      window.addEventListener('touchmove', onTouchMove);
+      // Pass 'passive' false in to prevent any intervention.
+      window.addEventListener('touchstart', onTouchStart, {passive: false});
+      window.addEventListener('touchmove', onTouchMove, {passive: false});
       window.addEventListener('touchend', onTouchEnd);
       window.addEventListener('touchleave', onTouchEnd);
       window.addEventListener('touchcancel', onTouchEnd);
-      window.addEventListener('wheel', onMouseWheel);
+      window.addEventListener('wheel', onMouseWheel, {passive: false});
       window.requestAnimationFrame(onAnimationFrame);
     }