B_HU_PRED          28 third_party/libwebp/dec/tree.c             -B_HD_PRED, -B_HU_PRED
B_HU_PRED         320 third_party/libwebp/dec/tree.c                             (!VP8GetBit(br, prob[8]) ? B_HD_PRED : B_HU_PRED)));
B_HU_PRED          47 third_party/libwebp/dec/vp8i.h        NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED,  // = 10
B_HU_PRED          46 third_party/libwebp/enc/vp8enci.h        NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED,  // = 10