No key status on 2017 Tizen TVs

[joeyparrish]

There seems to be no key status information on 2017 Tizen TVs. This causes a timeout in one of our DRM integration tests, but more concerning is that we may not be able to make the right decisions for some content without this information.

We need to:

1. File a bug against Samsung
2. Work around the test failure
3. Work around any content issues that arise from this

This is related to #884 for 2016 TVs, in which the EME polyfill sends out a fake key status event, but without any valid key IDs in it. We must solve #884 in order to work without key status information. The difference with 2017 TVs is that there is no polyfill and no key status event at all.

[chrisfillmore]

Fyi I have both a 2016 and 2017 TV now if I can assist with troubleshooting.

[joeyparrish]

Work-arounds are in place now, but we still have not been able to file bugs against Samsung/Tizen. Having trouble getting an account on their JIRA instance.