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These formats don't work for TexStorage3D if target is TEXTURE_3D.
TEXTURE_2D_ARRAY should work.

BUG=295792
TEST=conformance2/textures/misc/tex-storage-compressed-formats.html

Committed: https://crrev.com/5b5a54a2d7c287e09f644d04e29718b310949221
Cr-Commit-Position: refs/heads/master@{#360760}

Review URL: https://codereview.chromium.org/1463503002

Cr-Commit-Position: refs/heads/master@{#361180}