VP8RandomBits     594 third_party/libwebp/enc/picture.c   return VP8RGBToY(r, g, b, VP8RandomBits(rg, YUV_FIX));
VP8RandomBits     598 third_party/libwebp/enc/picture.c   return VP8RGBToU(r, g, b, VP8RandomBits(rg, YUV_FIX + 2));
VP8RandomBits     602 third_party/libwebp/enc/picture.c   return VP8RGBToV(r, g, b, VP8RandomBits(rg, YUV_FIX + 2));