blink: Mark tests with setTimout as long.

These 2 tests use a timeout of 1s and could run slower on MSAN/TSAN.
Conservatively mark them as long to give them a larger timeout.

R=vmpstr@chromium.org

Change-Id: I2fcd7410f53083b4fc344d294a9d8cd2c9467c01
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3884945
Commit-Queue: Khushal Sagar <khushalsagar@chromium.org>
Commit-Queue: Vladimir Levin <vmpstr@chromium.org>
Reviewed-by: Vladimir Levin <vmpstr@chromium.org>
Auto-Submit: Khushal Sagar <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1045140}