Skip the pointer event tests which failed on WebKit Linux Leak.

The below pointer event tests cause memory leak.
pointerevents/pointerevent_touch-action-auto-css_touch-manual.html
pointerevents/pointerevent_releasepointercapture_onpointercancel_touch-manual.html
pointerevents/pointerevent_touch-action-pan-x-pan-y_touch-manual.html

BUG=628660

Review-Url: https://codereview.chromium.org/2154713003
Cr-Commit-Position: refs/heads/master@{#405931}
1 file changed