ARGB_BLACK        447 third_party/libwebp/dsp/lossless.c   return ARGB_BLACK;
ARGB_BLACK        595 third_party/libwebp/dsp/lossless.c           predict = (col == 0) ? ARGB_BLACK : current_row[col - 1];  // Left.
ARGB_BLACK        643 third_party/libwebp/dsp/lossless.c         predict = (col == 0) ? ARGB_BLACK : current_row[col - 1];  // Left.