e.g eloquence: if ou have google tts active, go in to arc settings/accessibility/text to speech, select eloquence, press ok, now when eloquence is active, in the list of tts engines, press cvox+right arrow to browse tts engines. eloquence dont annonce menu items. this bug efect other engines too e.g vocalizer, speaktts.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/40005a60f880f4ff5e571e23ce242f6807608447

commit 40005a60f880f4ff5e571e23ce242f6807608447
Author: David Tseng <dtseng@chromium.org>
Date: Thu Aug 16 23:31:11 2018

Re-introduce workaround for strings that do not produce callbacks

Bug:  859052 
Change-Id: Ic1113d8e4200f46bb3f49e1a2c72cbedaba1eef5
Reviewed-on: https://chromium-review.googlesource.com/1178890
Commit-Queue: David Tseng <dtseng@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583879}
[modify] https://crrev.com/40005a60f880f4ff5e571e23ce242f6807608447/chrome/browser/resources/chromeos/chromevox/host/chrome/tts_background.js

This is fixed on latest builds of Chrome OS.