*** Original commit ***
Add a timer to end a video stream prematurely in ExtTexMgr
***
This has been submitting for more than 1.5hrs. "This presubmit is running slowly because you have been throttled by Build Queue due to using too much of your Product Area's quota."
adding NO_SQ as this is a pure rollback
PiperOrigin-RevId: 539135970
(cherry picked from commit e790f3271f209f4fcc955f6d8841ec5219da7156)
