Disable SitePerProcessBrowserTest.ViewBoundsInNestedFrameTest on Viz

Apparently this test can still fail on Windows. So re-disabling it until it can be investigated further.

TBR=fsamuel@chromium.org
TEST=SitePerProcessBrowserTest.ViewBoundsInNestedFrameTest

Bug: 848825
Change-Id: I00828a10cfd5c8c111b30f61eb5d8acbf57da2ea
Reviewed-on: https://chromium-review.googlesource.com/1133875
Reviewed-by: Jonathan Ross <jonross@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574377}
2 files changed