Revert of Disable chromevox_tests BackgroundTest.InitialFeedback (patchset #2 id:20001 of https://codereview.chromium.org/
908913002/)
Reason for revert:
Cl which caused this flake was reverted.
Original issue's description:
> Disable chromevox_tests BackgroundTest.InitialFeedback
>
> The test attempts to monitor speech immediately after startup. Disabling for now until we can figure out why it flakes on bots.
>
> NOTRY=true
> TBR=dtseng@chromium.org
>
> Committed: https://crrev.com/
94007abc03dff9620d5fd64237b1fdb3c0c19957
> Cr-Commit-Position: refs/heads/master@{#315374}
TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/
895533003
Cr-Commit-Position: refs/heads/master@{#315392}