Dev has provided new screenshot for PIP topic. Note that
image caption is still accurate and won't be changed.
See CL comment for staged preview.
Bug: 27589110
Change-Id: I376f23dda3980c9ee93552d59d5469e13296b5b3
Recent changes in PIP (back to PIP window can exist outside
of the app) reflected in doc updates.
Updates based on reviews.
Adding new (mocked-up but reviewed) screenshot.
Bug: 27228723
Change-Id: Ifc04d0f9def1f632b097f78f6aaddb24094e63b5
Adding developer docs for the new PIP mode for Android TV devices.
Updates added based on review suggestions.
Bug: 27228723
Change-Id: I9fec21c349e1bc2b3f04275add8fff070f5c664c
