Pbuffers created using eglCreatePbufferFromClientBuffer from share handles created using keyed mutexes can now have their keyed mutex queried. All other pbuffers will continue to be created without keyed mutexes. BUG=337606 Change-Id: Id9039064dd8c89fe1706cc8ecb31111c994761fc Reviewed-on: https://chromium-review.googlesource.com/324253Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
