Make it possible to run gtests on iOS.

base/test/run_all_perftests.cc

Index: base/test/run_all_perftests.cc
diff --git a/base/test/run_all_perftests.cc b/base/test/run_all_perftests.cc
index 2b4c62828589f1a1ccaeef0b4e0ec95d93506236..6d9817c1450a5e61146d0b0b08684d525cc75062 100644
--- a/base/test/run_all_perftests.cc
+++ b/base/test/run_all_perftests.cc
@@ -1,9 +1,11 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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/test/main_hook.h"
 #include "base/test/perf_test_suite.h"
 
 int main(int argc, char** argv) {
+  MainHook hook(main, argc, argv);
   return base::PerfTestSuite(argc, argv).Run();
 }