Video/Screenshare loopback tool.

webrtc/video/BUILD.gn

Index: webrtc/video/BUILD.gn
diff --git a/webrtc/video/BUILD.gn b/webrtc/video/BUILD.gn
index b815acef8e011d7ce9783db782b82f3e7ea0ac81..ad3fe5a297963c916ab19db170111b37559ef792 100644
--- a/webrtc/video/BUILD.gn
+++ b/webrtc/video/BUILD.gn
@@ -179,6 +179,30 @@ if (rtc_include_tests) {
     }
   }
 
+  rtc_executable("vs_loopback") {
+    testonly = true
+    sources = [
+      "vs_loopback.cc",
+    ]
+    deps = [
+      ":video_quality_test",
+      "../rtc_base:rtc_base_approved",
+      "../system_wrappers:metrics_default",
+      "../test:field_trial",
+      "../test:run_test",
+      "../test:test_common",
+      "../test:test_renderer",
+      "../test:test_support",
+      "//testing/gmock",
+      "//testing/gtest",
+      "//third_party/gflags",
+    ]
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+    }
+  }
+
   rtc_executable("screenshare_loopback") {
     testonly = true
     sources = [