relnote: n/a (changing DLOGs). Tidy up the DLOG messages on receipt of

relnote: n/a (changing DLOGs). Tidy up the DLOG messages on receipt of
various frame types. I was confused for a while by the connection close
message (my test server was *receiving* it, rather than closing the
connection itself), hence the change to that message. Other edits bring
consistency.

Merge internal change: 101773586

R=rch@chromium.org

[Ryan Hamilton, 2015-09-10 14:28:52]

lgtm