am 9c4d7d67: am 5c6c5c7a: fix [3028370] GL get error should return a valid error if no context is bound.

Merge commit '9c4d7d677097981a349c718902e29050dad3d59f'

* commit '9c4d7d677097981a349c718902e29050dad3d59f':
  fix [3028370] GL get error should return a valid error if no context is bound.