[orca-list] With Google Chrome, pressing control doesn't stop orca

[Alex ARNAUD <aarnaud hypra fr>]

    Hello,
    
    Environment:
    - Orca master
    - Google Chrome Unstable 80.0.3964.0-1
    - Google Chrome launched like this "google-chrome-unstable
    --force-renderer-accessibility --enable-caret-browsing"
    
    Steps to reproduce:
    1) Open this page: https://www.nextinpact.com/lebrief/edition-464.htm
    2) Go on the first header with 2 and then to the first paragraph
    with p
    3) Launch "say all"
    4) Press control
    
    Result:
    Orca repeats the end of the sentence or line.
    
    Expected result:
    Orca should stop speaking as in Firefox.
    
    Best regards.