Prepare SDK to be compliant with Android 11 permissions flow

[calaba140]

SPECIFIC ISSUE ENCOUNTERED

Camera Permission flow is not respected for the "Ask every time" / "Only this time" option on Android 11. Instead the Deny permission flow is invoked

VERSIONS USED

• Unity: 2017.4.34f1
• ARCore SDK for Unity: v1.18.0
• Device manufacturer, model, and O/S: Pixel 3a XL & Pixel 3, Android 11 Beta 3
• ARCore: 1.18.200603086
• Output of adb shell getprop ro.build.fingerprint: Not available since it's been reported on a device that I have no access to

STEPS TO REPRODUCE THE ISSUE

1. Launch the app on Android 11 Beta 3
2. Trigger the Camera Permission
3. Note the option Ask every time - choose it
4. Enter AR, exit it and restart the title
5. Try to access the AR feature again - note that the pop-up will not appear again (even if the ask every time option was chosen) - instead the "permission already denied; check settings" pop-up will appear

WORKAROUNDS (IF ANY)

None

ADDITIONAL COMMENTS

The final release of Android 11 is expected to take place in September. Any chances to release a version of the SDK that is compliant with Android 11 Permissions flow before Android 11 is released?

Thanks