Consider winsdk_samples a system library (attempt 3).

Using -imsvc will not trigger warnings when winsdk_samples headers are
included in WebRTC (it is similar to -isystem on GCC and clang).

Bug: webrtc:9251
Change-Id: Iae9b81ae90a3141c72b829cf27f01b9a60047dab
TBR=phoglund@webrtc.org
Reviewed-on: https://webrtc-review.googlesource.com/76720
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
1 file changed
tree: b1e50cb1fe6f8471ef53e9ae645164f35adcf588
  1. BUILD.gn
  2. License/
  3. OWNERS
  4. README.webrtc
  5. Samples/
  6. codereview.settings