We would get into a broken state if the user would bind a Texture
to an egl::Surface, then change the Texture. This is valid in egl,
and should release the Surface when it happens.

BUG=485543

Change-Id: Idfaa305ac704f2bc579e79be816e88a23e69351b
Reviewed-on: https://chromium-review.googlesource.com/271986Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/280906