As Skia evolves/refines, it sometimes needs to deprecate or change public APIs. This can require refactoring changes in Chrome/blink. To stage these changes, skia/config/SkUserConfig.h is used to define legacy flags during the transition period. These flags should eventually be removed. This is a tracking bug for that effort.
Comment 1 by sheriffbot@chromium.org
, Sep 17 2016