It would be nice to add more VLOG on macOS as it is hard to Bluetooth debug issues like https://bugs.chromium.org/p/chromium/issues/detail?id=681309 for instance.
Existing VLOGs like the one below would also benefit of extra information about characteristic properties.
VLOG(1) << "Bluetooth error while reading for characteristic, domain: "
<< base::SysNSStringToUTF8(error.domain)
<< ", error code: " << error.code;
Comment 1 by fbeaufort@chromium.org
, Jan 27 2017