No-op change to sbox_validation_tests to undup isolate results.

Tbr: wfh@chromium.org
Bug: 959223
Change-Id: I935873e5ae1ed2c86288f0cce3dcc5d2f81b58b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1594653
Commit-Queue: John Budorick <jbudorick@chromium.org>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#656412}

sandbox/win/tests/validation_tests/unit_tests.cc

@@ -14,6 +14,10 @@ int wmain(int argc, wchar_t **argv) {
       return sandbox::DispatchCall(argc, argv);
   }
 
+  // Force binary unduplication for crbug.com/959223.
+  // If you're reading this, it should be safe to remove.
+  DCHECK(argc >= 0);
+
   base::TestSuite test_suite(argc, argv);
   return base::LaunchUnitTests(
       argc,