Restore locales after tests

base/i18n/case_conversion_unittest.cc

Index: base/i18n/case_conversion_unittest.cc
diff --git a/base/i18n/case_conversion_unittest.cc b/base/i18n/case_conversion_unittest.cc
index dc5bc1fe8b145d8080f593221051f3fc9a1628ff..d5fb61264c278ae92479a484f81b40e29be1db5f 100644
--- a/base/i18n/case_conversion_unittest.cc
+++ b/base/i18n/case_conversion_unittest.cc
@@ -13,6 +13,21 @@ namespace i18n {
 
 namespace {
 
+class ScopedSetICUDefaultLocale {
+  std::string default_locale;
+
+ public:
+  ScopedSetICUDefaultLocale(std::string locale);
+  ~ScopedSetICUDefaultLocale();
+};
+
+ScopedSetICUDefaultLocale::ScopedSetICUDefaultLocale(std::string locale)
+    : default_locale(locale) {}
+
+ScopedSetICUDefaultLocale::~ScopedSetICUDefaultLocale() {
+  i18n::SetICUDefaultLocale(default_locale.data());
+}
+
 const wchar_t kNonASCIIMixed[] =
     L"\xC4\xD6\xE4\xF6\x20\xCF\xEF\x20\xF7\x25"
     L"\xA4\x23\x2A\x5E\x60\x40\xA3\x24\x2030\x201A\x7E\x20\x1F07\x1F0F"
@@ -58,7 +73,7 @@ TEST(CaseConversionTest, TurkishLocaleConversion) {
   const string16 expected_lower(WideToUTF16(L"\x69\x131"));
   const string16 expected_upper(WideToUTF16(L"\x49\x49"));
 
-  std::string default_locale(uloc_getDefault());
+  ScopedSetICUDefaultLocale restore_object(uloc_getDefault());
   i18n::SetICUDefaultLocale("en_US");
 
   string16 result = ToLower(mixed);
@@ -77,8 +92,6 @@ TEST(CaseConversionTest, TurkishLocaleConversion) {
 
   result = ToUpper(mixed);
   EXPECT_EQ(expected_upper_turkish, result);
-
-  SetICUDefaultLocale(default_locale.data());
 }
 
 TEST(CaseConversionTest, FoldCase) {
@@ -97,7 +110,7 @@ TEST(CaseConversionTest, FoldCase) {
   const string16 turkish(WideToUTF16(L"\x49\x131"));
   const string16 turkish_expected(WideToUTF16(L"\x69\x131"));
 
-  std::string default_locale(uloc_getDefault());
+  ScopedSetICUDefaultLocale restore_object(uloc_getDefault());
   i18n::SetICUDefaultLocale("en_US");
   EXPECT_EQ(turkish_expected, FoldCase(turkish));