Any changes to Skia should have at a minimum both a Mozilla bug tagged with the [skia-upstream] whiteboard tag, and also an upstream bug and review request. Any patches that do ultimately land in mozilla-central must be reviewed by a Skia submodule peer. See https://wiki.mozilla.org/Modules/Core#Graphics for current peers. In most cases the patch will need to have an r+ from upstream before it is eligible to land here. For information on submitting upstream, see: https://sites.google.com/site/skiadocs/developer-documentation/contributing-code/how-to-submit-a-patch