716     const uint16_t* histogram_symbols,  in StoreImageToBitMask()  argument
725   int histogram_ix = histogram_symbols[0];  in StoreImageToBitMask()
733       histogram_ix = histogram_symbols[(y >> histo_bits) * histo_xsize +  in StoreImageToBitMask()
788   const uint16_t histogram_symbols[1] = { 0 };    // only one tree, one symbol  in EncodeImageNoHuffman()  local
852   err = StoreImageToBitMask(bw, width, 0, refs, histogram_symbols,  in EncodeImageNoHuffman()
883   uint16_t* const histogram_symbols =  in EncodeImageInternal()  local
885                                 sizeof(*histogram_symbols));  in EncodeImageInternal()
894   if (histogram_symbols == NULL) {  in EncodeImageInternal()
943                                   tmp_histo, histogram_symbols)) {  in EncodeImageInternal()
990           const int symbol_index = histogram_symbols[i] & 0xffff;  in EncodeImageInternal()
1033                               histogram_symbols, huffman_codes);  in EncodeImageInternal()
1063   WebPSafeFree(histogram_symbols);  in EncodeImageInternal()