Restore locales after tests

Locales should be restored after tests and scoping should be used. Added restores and one restore changed to scoped version.

Review URL: https://codereview.chromium.org/1162603004

Cr-Commit-Position: refs/heads/master@{#344453}


CrOS-Libchrome-Original-Commit: 3be75bf76ac061129ec2a9e887d5d50cfd016a56
diff --git a/base/test/icu_test_util.cc b/base/test/icu_test_util.cc
new file mode 100644
index 0000000..a1a8029
--- /dev/null
+++ b/base/test/icu_test_util.cc
@@ -0,0 +1,21 @@
+// Copyright 2015 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/icu_test_util.h"
+
+#include "base/i18n/rtl.h"
+#include "third_party/icu/source/common/unicode/uloc.h"
+
+namespace base {
+namespace test {
+
+ScopedRestoreICUDefaultLocale::ScopedRestoreICUDefaultLocale()
+    : default_locale_(uloc_getDefault()) {}
+
+ScopedRestoreICUDefaultLocale::~ScopedRestoreICUDefaultLocale() {
+  i18n::SetICUDefaultLocale(default_locale_.data());
+}
+
+}  // namespace test
+}  // namespace base