Working on fixing crbug.com/627855, it turned out that the other createImageBitmap resize layout tests are downsizing from 32x32 to 4x4, which makes the results the same for different resize qualities. These tests should change to expansion tests (2x2 --> 4x4) such that the correct application of resize quality can be checked too.
Comment 1 by zakerinasab@chromium.org
, Jun 19 2017