VP8SetSkip        337 third_party/libwebp/enc/analysis.c   VP8SetSkip(it, 0);         // not skipped
VP8SetSkip       1153 third_party/libwebp/enc/quant.c   VP8SetSkip(it, is_skipped);
VP8SetSkip        351 third_party/libwebp/enc/vp8enci.h void VP8SetSkip(const VP8EncIterator* const it, int skip);