Google Chrome	69.0.3494.0 (Official Build) dev (64-bit)
Google Eve

Steps:
# Powerwash to get to OOBE
# Turn on ChromeVox with ctrl + alt + z
# Navigate through OOBE including signing in
# After signing in, arrive at the "You're signed in!" page
Expected: ChromeVox stays on
Actual: ChromeVox toggles itself off, earcon plays for ChromeVox turning off