Disable flaky SitePerProcessHitTestBrowserTest tests on ChromeOS

Bug: 833380
Change-Id: Ibbe5e66786930313ea10bcba1988df93e91f05e3
Tbr: kenrb@chromium.org
NoTry: True
Reviewed-on: https://chromium-review.googlesource.com/1138993
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575435}
1 file changed