png_set_user_transform_info 2099 third_party/libpng/png.h extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp
png_set_user_transform_info  269 ui/gfx/codec/png_codec.cc     png_set_user_transform_info(png_ptr, state, 0, 0);