Autoplay notification doesn't close on the first attempt

[srirambv]

• Did you search for similar issues before submitting this one?
  Yes

• Describe the issue you encountered:
  Autoplay notification doesn't close

• Platform (Win7, 8, 10? macOS? Linux distro?):
  Windows 10 x64

• Brave Version (revision SHA):
  Brave 0.17.12
  rev 0095c35
  Muon 4.1.6

• Steps to reproduce:

  1. Disable autoplay media under security
  2. Login to slack, wait for notification to show up for autoplay media
  3. Click on Yes/No, nothing happens
  4. Wait for a while and then click on Yes/No, option get set

• Actual result:
  Autoplay notification doesn't close on the first attempt

• Expected result:
  Should select the user option to allow/disallow

• Will the steps above reproduce in a fresh profile? If not what other info can be added?
  Yes

• Is this an issue in the currently released version?
  No

• Can this issue be consistently reproduced?
  No, intermittent

• Extra QA steps:
  1.
  2.
  3.

• Screenshot if needed:
  
  

• Any related issues:

[cezaraugusto]

deferring to @darkdh I think he has a plan for that, lmk if there's anything I can do to help :)

[darkdh]

dup #9171