Add timeout long for slow focus-navigation test
Following focus-navigation test is running into timeout flakiness:
external/wpt/shadow-dom/focus-navigation/focus-navigation-slot-nested-2levels.html
We try to fix this by adding a
annotation to the test.
Change-Id: I8ff80a9ea1cd4cc55542590a0e584051cba69893
Bug: 337889531
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5502731
Commit-Queue: Di Zhang dizhangg@chromium.org
Reviewed-by: Joey Arhar jarhar@chromium.org
Cr-Commit-Position: refs/heads/main@{#1294988}