If the format passed to MakeValidSize is invalid, there is potential for a mod by 0 which can result in a crash. Test: Verify no crash when format is invalid. Bug: b/182823289 Change-Id: I7f538be5d984070984f5581a5cc7ea47264109f4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2780557Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Doug Horn <doughorn@google.com>
