build/cg: disable protobuf and wgc for windows cg build (#702)

* Disable protobuf for windows cloud_gaming build

OWT build adds copy of protobuf into the final library, so if
user application does use protobuf already there will be link
errors due to duplicated symbols. Disabling protobuf for cloud
gaming build explicitly.

Signed-off-by: Dmitry Rogozhkin <[email protected]>

* Disable rtc_enable_win_wgc for windows cloud gaming build

That's just optimization for cloud gaming build to exclude
component from the build which we don't need.

Signed-off-by: Dmitry Rogozhkin <[email protected]>

---------

Signed-off-by: Dmitry Rogozhkin <[email protected]>

Author: dvrogozh

scripts/build-win.py

@@ -82,6 +82,8 @@ def gngen(arch, sio_root, ffmpeg_root, ssl_root, msdk_root, quic_root, scheme, t
         gn_args.append('rtc_include_tests=false')
         gn_args.append('owt_include_tests=false')
     if cloud_gaming:
+        gn_args.append('rtc_enable_protobuf=false')
+        gn_args.append('rtc_enable_win_wgc=false')
         gn_args.append('owt_cloud_gaming=true')
     if sio_root:
         # If sio_root is not specified, conference SDK is not able to build.