ANGLE would previously treat a texture as incomplete whenever its base
level was above 0. This was because the base level wasn't being taken
into account correctly when determining what size the image at a specific
mip level should be. Fix this by taking the base level into account when
determining the expected size.
BUG=angleproject:596
TEST=angle_end2end_tests
Change-Id: I4b05514aed2858797ea46cf3570c3c40e5efc508
Reviewed-on: https://chromium-review.googlesource.com/322132
Tryjob-Request: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
