Mark bottom-and-top-fixed-sticks-to-top as failing+timeout

Failure already expected, but timeouts are still causing bot failures.
See bug for logs.

TBR=pdr@chromium.org

Bug: 898394
Change-Id: If32382ef010ecc46be6539a03a082d18e0a4d61e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2264873Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
Cr-Commit-Position: refs/heads/master@{#781973}

third_party/blink/web_tests/TestExpectations

@@ -263,7 +263,7 @@ crbug.com/887000 virtual/prefer_compositing_to_lcd_text/scrollbars/hidden-scroll
 crbug.com/882975 virtual/threaded/fast/events/pinch/gesture-pinch-zoom-prevent-in-handler.html [ Failure Pass ]
 crbug.com/882975 virtual/threaded/fast/events/pinch/scroll-visual-viewport-send-boundary-events.html [ Failure Pass ]
 
-crbug.com/898394 virtual/android/url-bar/bottom-and-top-fixed-sticks-to-top.html [ Failure ]
+crbug.com/898394 virtual/android/url-bar/bottom-and-top-fixed-sticks-to-top.html [ Failure Timeout ]
 
 crbug.com/1024151 http/tests/devtools/tracing/timeline-style/timeline-style-recalc-all-invalidator-types.js [ Failure Pass ]