https://luci-milo.appspot.com/buildbot/chromium.fyi/Fuchsia/9518

[00168.896] 03532.03559> [ RUN      ] LegacyTouchEventQueueTest.AsyncTouchWithAckTimeout
[00168.896] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1856: Failure
[00168.896] 03532.03559> Value of: IsTimeoutRunning()
[00168.897] 03532.03559>   Actual: true
[00168.897] 03532.03559> Expected: false
[00168.898] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1857: Failure
[00168.898] 03532.03559>       Expected: 1U
[00168.898] 03532.03559>       Which is: 1
[00168.899] 03532.03559> To be equal to: GetAndResetAckedEventCount()
[00168.899] 03532.03559>       Which is: 0
[00168.899] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1863: Failure
[00168.900] 03532.03559> Expected: (WebInputEvent::kBlocking) != (sent_event().dispatch_type), actual: 0 vs 0
[00168.900] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1864: Failure
[00168.900] 03532.03559>       Expected: 0U
[00168.901] 03532.03559>       Which is: 0
[00168.901] 03532.03559> To be equal to: GetAndResetAckedEventCount()
[00168.901] 03532.03559>       Which is: 1
[00168.901] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1865: Failure
[00168.902] 03532.03559>       Expected: 1U
[00168.902] 03532.03559>       Which is: 1
[00168.903] 03532.03559> To be equal to: GetAndResetSentEventCount()
[00168.903] 03532.03559>       Which is: 0
[00168.904] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1880: Failure
[00168.904] 03532.03559>       Expected: 1U
[00168.905] 03532.03559>       Which is: 1
[00168.905] 03532.03559> To be equal to: GetAndResetAckedEventCount()
[00168.905] 03532.03559>       Which is: 0
[00168.906] 03532.03559> ../../content/browser/renderer_host/input/legacy_touch_event_queue_unittest.cc:1881: Failure
[00168.906] 03532.03559>       Expected: 0U
[00168.907] 03532.03559>       Which is: 0
[00168.908] 03532.03559> To be equal to: GetAndResetSentEventCount()
[00168.908] 03532.03559>       Which is: 1
[00168.909] 03532.03559> [  FAILED  ] LegacyTouchEventQueueTest.AsyncTouchWithAckTimeout (141 ms)

I think this one might just be a questionable timing assumption in the test, but I need to dig in deeper.