When we switched from converting 8-bit normalized signed int from a full 32-bit float expansion to a 4-channel 8-bit format, we broke an ANGLE test. Giving the test a slightly looser bound produces the correct output, due to floating point rounding. BUG=angle:612 Change-Id: I8781e6efe83341e22d31d35b35e0048889bcd540 Reviewed-on: https://chromium-review.googlesource.com/196532Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
