events: Add a new events_unittests target.

ui/events/test/events_unittests.cc

Index: ui/events/test/events_unittests.cc
diff --git a/tools/gn/config_values.cc b/ui/events/test/events_unittests.cc
similarity index 57%
copy from tools/gn/config_values.cc
copy to ui/events/test/events_unittests.cc
index 53466dfd79180b8c211b9d9202a1db73b9166f36..ab220c357e5b7836d396042616b9e99baaee9536 100644
--- a/tools/gn/config_values.cc
+++ b/ui/events/test/events_unittests.cc
@@ -2,10 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "tools/gn/config_values.h"
+#include "ui/events/test/test_suite.h"
 
-ConfigValues::ConfigValues() {
-}
-
-ConfigValues::~ConfigValues() {
+int main(int argc, char** argv) {
+  return ui::test::EventsTestSuite(argc, argv).Run();
 }