Set locale for extension tests, keep it from affecting global state

chrome/common/extensions/extension_l10n_util.cc

Index: chrome/common/extensions/extension_l10n_util.cc
diff --git a/chrome/common/extensions/extension_l10n_util.cc b/chrome/common/extensions/extension_l10n_util.cc
index f8617888d0d31be661a5d6cb8fcf317fb2c8965c..22c6ddf5577062b3402645acba33a33182998eca 100644
--- a/chrome/common/extensions/extension_l10n_util.cc
+++ b/chrome/common/extensions/extension_l10n_util.cc
@@ -354,4 +354,16 @@ bool ShouldSkipValidation(const FilePath& locales_path,
   return false;
 }
 
+ScopedLocaleForTest::ScopedLocaleForTest()
+    : locale_(extension_l10n_util::CurrentLocaleOrDefault()) {}
+
+ScopedLocaleForTest::ScopedLocaleForTest(const std::string& locale)
+    : locale_(extension_l10n_util::CurrentLocaleOrDefault()) {
+  extension_l10n_util::SetProcessLocale(locale);
+}
+
+ScopedLocaleForTest::~ScopedLocaleForTest() {
+  extension_l10n_util::SetProcessLocale(locale_);
+}
+
 }  // namespace extension_l10n_util