Create variations target that depends on base.

components/variations/metrics_util_unittest.cc

Index: components/variations/metrics_util_unittest.cc
===================================================================
--- components/variations/metrics_util_unittest.cc	(revision 0)
+++ components/variations/metrics_util_unittest.cc	(working copy)
@@ -0,0 +1,31 @@
+// Copyright 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 "components/variations/metrics_util.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace metrics {
+
+TEST(MetricsUtilTest, HashName) {
+  // Checks that hashing is stable on all platforms.
+  struct {
+    const char* name;
+    uint32 hash_value;
+  } known_hashes[] = {
+    {"a", 937752454u},
+    {"1", 723085877u},
+    {"Trial Name", 2713117220u},
+    {"Group Name", 3201815843u},
+    {"My Favorite Experiment", 3722155194u},
+    {"My Awesome Group Name", 4109503236u},
+    {"abcdefghijklmonpqrstuvwxyz", 787728696u},
+    {"0123456789ABCDEF", 348858318U}
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(known_hashes); ++i)
+    EXPECT_EQ(known_hashes[i].hash_value, HashName(known_hashes[i].name));
+}
+
+}  // namespace metrics