regression: flash not working on linux since 0.13.0

[alexwykoff]

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

• Describe the issue you encountered:
  Flash will not load despite user request.

• Platform (Win7, 8, 10? macOS? Linux distro?):
  Tested on Windows, OS X , and Linux, issue only reproduced on Linux.

• Brave Version (revision SHA):
  0.13.0 (8ca0127)

• Steps to reproduce:

  1. Visit homestarrunner.com and attempt to play flash.

• Actual result:
  Flash does not load.

• Expected result:
  Flash should load at user request.

• 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?
  Yes

• Can this issue be consistently reproduced?
  Yes

• Extra QA steps:
  1.
  2.
  3.

• Screenshot if needed:

• Any related issues:

[CliqueBait]

Duplicate issue I think: #6908

[bsclifton]

Definitely a dupe; thanks, @CliqueBait 😄 Hopefully, we'll have this fixed soon