WebRTC: Update moved Mac baremetal machine.
WebRTC: Update moved Mac baremetal machine.

We've got a new machine in the a3 lab to replace
the old one that was tricky to SSH into.

I have installed virtual webcam software on the machine.

BUG=356795
TBR=phoglund@chromium.org

Review URL: https://codereview.chromium.org/312503002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@274197 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build