Filed by: nbeleuzu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=245580836&repo=mozilla-inbound
Full log: https://queue.taskcluster.net/v1/task/YrAEIQeCSvexgranPzqchg/runs/0/artifacts/public/logs/live_backing.log
Reftest URL: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://queue.taskcluster.net/v1/task/YrAEIQeCSvexgranPzqchg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

17:49:23 INFO - TEST-START | /visual-viewport/viewport-scrollbars-cause-resize.html
17:49:23 INFO - Run 9/10
17:49:23 INFO - Closing window 25769803777
17:49:23 INFO - PID 3928 | [Child 3984, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1557414266/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
17:49:23 INFO - PID 3928 | [Child 3984, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1557414266/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
17:49:23 INFO -
17:49:23 INFO - TEST-PASS | /visual-viewport/viewport-scrollbars-cause-resize.html | view size initially matches window size
17:49:23 INFO - TEST-UNEXPECTED-PASS | /visual-viewport/viewport-scrollbars-cause-resize.html | Resize event was fired at window.visualViewport if, and only if, scrollbars are classic (i.e. affect flow) - expected FAIL
17:49:23 INFO - TEST-INFO | expected FAIL

The "fails" annotation here (which we're unexpectedly passing) is from
https://hg.mozilla.org/integration/autoland/rev/ca147aeec45e#l3.13
...and was added yesterday in bug 1477610 by botond.

We disable them rather than marking them as expected to fail because sometimes
the problems with them can manifest as intermittent failures.

https://hg.mozilla.org/mozilla-central/rev/c7646277eaf2