Make startup_tests build and work on Mac.

chrome/test/startup/startup_test.cc

 // Copyright (c) 2006-2008 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 "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/platform_thread.h"
 #include "base/string_util.h"
 #include "base/test_file_util.h"
@@ skipping 89 matching lines @@
     std::wstring file_url;
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &file_url));
     file_util::AppendToPath(&file_url, L"empty.html");
     ASSERT_TRUE(file_util::PathExists(file_url));
     launch_arguments_.AppendLooseValue(file_url);
 
     pages_ = WideToUTF8(file_url);
   }
 };
 
-}  // namespace
-
 TEST_F(StartupTest, Perf) {
   RunStartupTest("warm", "t", false /* not cold */, true /* important */);
 }
 
 #if defined(OS_WIN)
 // TODO(port): Enable reference tests on other platforms.
 
 TEST_F(StartupReferenceTest, Perf) {
   RunStartupTest("warm", "t_ref", false /* not cold */,
                  true /* important */);
 }
 
 // TODO(mpcomplete): Should we have reference timings for all these?
 
 TEST_F(StartupTest, PerfCold) {
   RunStartupTest("cold", "t", true /* cold */, false /* not important */);
 }
 
 TEST_F(StartupFileTest, PerfGears) {
   RunStartupTest("warm", "gears", false /* not cold */,
                  false /* not important */);
 }
 
 TEST_F(StartupFileTest, PerfColdGears) {
   RunStartupTest("cold", "gears", true /* cold */,
                  false /* not important */);
 }
 
 #endif  // defined(OS_WIN)
+
+}  // namespace