Support EnableMediaAccessPermission configuration

[kenhys]

Which issue(s) this PR fixes:

98

What this PR does / why we need it:

In the previous versions, there is no way to configure enable permission by default without manual approval.

This commit introduce EnableMediaAccessPermission, which means:

0: no permission (block media access) 1: manual approval 2: approval by default without manual permission

This is replacement of EnableMediaAccessByApproval. EnableMeiaAccessByApproval configuration setting is deprecated and not used anymore.

How to verify the fixed issue:

Native edition with no access to media

1. Ensure no EnableMediaAccessPermission entry in ChronosDefault.conf
2. Lauch Chronos
3. Access https://meet.jit.si/
4. Start meeting
5. No request to access media
6. Quit Chronos
7. Ensure EnableMediaAccessPermission=0 entry in ChronosDefault.conf
8. Launch Chronos
9. Access https://meet.jit.si/
10. Start meeting
11. No request to access media

Native edition with manual approval

1. Ensure no EnableMediaAccessPermission=1 entry in ChronosDefault.conf
2. Lauch Chronos
3. Access https://meet.jit.si/
4. Start meeting
5. Ensure requested access to media confirmation dialog.

Native edition with default approval

1. Ensure no EnableMediaAccessPermission=2 entry in ChronosDefault.conf
2. Lauch Chronos
3. Access https://meet.jit.si/
4. Start meeting
5. Ensure no request to access media

Native edition with manual approval (migration)

1. Ensure no EnableMediaAccessByApproval=1 entry in ChronosDefault.conf (No EnableMediaAccesByApproval entry)
2. Lauch Chronos
3. Access https://meet.jit.si/
4. Start meeting
5. Ensure requested access to media confirmation dialog.
6. Quit
7. Ensure EnableMediaAccessByApproval entry

Expected result:

Native edition with no access to media

• No requsted media access permission and blocked access to media.

Native edition with manual approval to media

• Requsted media access permission and can manually approve it

Native edition with default approval

• No requsted media access permission and always allowed access to media.

Native edition with manual approval (migration)

• Requsted media access permission and can manually approve it
• EnableMediaAccessByApproval entry was removed after shutdown Chronos.

[kenhys]

Updated explanation & expected behavior.