Building Web RTC on FreeBSD

[Joe Nosay]

I've ran into the platform not recognized error.
running '/usr/local/bin/python trunk/build/gyp_chromium --depth=trunk
trunk/all.gyp -Dextra_gyp_flag=0' in '/usr/home/raspycat/webrtc-
build'
Unknown platform for GN:  freebsd10
Error: Command /usr/local/bin/python trunk/build/gyp_chromium --depth=trunk
trunk/all.gyp -Dextra_gyp_flag=0 returned non-zero exit status 1 in
/usr/home/raspycat/webrtc-build