png_write_end    1870 third_party/libpng/png.h extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr,
png_write_end    1587 third_party/libpng/pngwrite.c    png_write_end(png_ptr, info_ptr);
png_write_end     518 tools/imagediff/image_diff_png.cc   png_write_end(png_ptr, info_ptr);
png_write_end     629 ui/gfx/codec/png_codec.cc   png_write_end(png_ptr, info_ptr);