pub unsafe extern "C" fn cef_string_map_append(
map: cef_string_map_t,
key: *const cef_string_t,
value: *const cef_string_t,
) -> c_intpub unsafe extern "C" fn cef_string_map_append(
map: cef_string_map_t,
key: *const cef_string_t,
value: *const cef_string_t,
) -> c_int