Create a field trial to test if we can detect good QPC implementations.

chrome/browser/metrics/time_ticks_experiment_unittest.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/metrics/time_ticks_experiment_win.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#if defined(OS_WIN)
+
+namespace chrome {
+namespace {
+
+// Makes sure the test runs. Mostly so we don't break by using illegal functions
+// on older versions of Windows. The results vary depending on the host
+// machine's capabilities, so it'd be hard to write proper expectations.
+TEST(TimeTicksExperimentTest, RunTimeTicksExperiment) {
+  CollectTimeTicksStats();
+}
+
+}  // anonymous namespace
+}  // namespace chrome_browser_metrics
+
+#endif  // defined(OS_WIN)