Mode: force_next
Version: 52.0.2743.32
Reproduction Steps: 
1. inbox/
2. C to compose message
3. type "chromevox"

Observed:
1. Lots of verbosity of exiting main and application, 
2. Autocomplete results in entire dialog being uttered at least 3x

Expected:
1. No need to speak exiting main/application
2. Entire dialog shouldn't be read over and over, but just the focused autocomplete option value once.