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CoreAudio seems to be the source of a lot of hangs when under a
remote desktop session and we've had past success with moving
these users over to WaveOut, so do so for all remote sessions.

This first queries the SM_REMOTESESSION system metric and then
tries to get the friendly name of the default audio device; if
it can't do that and a remote session is present or it can and
friendly name is "Remote Audio", CoreAudio functions are
disabled.

This change also adds a check to WASAPIAudioOutputStream::Open
to fail when a remote audio stream is requested; which will
trigger fallback in the AudioOutputResampler (if the user
resumes their session locally later they'll get WASAPI again
once streams have been closed for a few seconds).

BUG=422522
TEST=remote desktop session w/ remote audio gets WaveOut; works
with xfreerdp and Microsoft Remote Desktop client for OS; local
session gets WASAPI, connecting and starting a stream remotely
gets WaveOut.

Review URL: https://codereview.chromium.org/1060673002

Cr-Commit-Position: refs/heads/master@{#324246}