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

chrome/browser/intents/cws_intents_registry_unittest.cc

 // 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 "chrome/browser/intents/cws_intents_registry.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 133 matching lines @@
     "\"image/png\", \"image/jpg\"],\n      \"path\" : \"//services/edit\",\n"
     "      \"title\" : \"Sample Editing Intent\",\n      \"disposition\" : "
     "\"inline\"\n    },\n    \"http://webintents.org/share\" : {\n      "
     "\"type\" : [\"text/plain\", \"image/jpg\"],\n      \"path\" : "
     "\"//services/share\",\n      \"title\" : \"Sample sharing Intent\",\n"
     "      \"disposition\" : \"inline\"\n    }\n  }\n}\n";
 
 const char kEditAction[] = "http://webintents.org/edit";
 const char kImagePngType[] = "image/png";
 
-class ScopedLocale {
- public:
-  ScopedLocale() : locale_(extension_l10n_util::CurrentLocaleOrDefault()) {}
-  ~ScopedLocale() { extension_l10n_util::SetProcessLocale(locale_); }
-  std::string locale_;
-};
-
 class CWSIntentsRegistryTest : public testing::Test {
  public:
   virtual void SetUp() {
     scoped_refptr<TestURLRequestContextGetter> context_getter(
         new TestURLRequestContextGetter(ui_loop_.message_loop_proxy()));
     registry_.reset(context_getter);
   }
 
   virtual void TearDown() {
     // Pump messages posted by the main thread.
@@ skipping 63 matching lines @@
   GURL url = CWSIntentsRegistry::BuildQueryURL(ASCIIToUTF16("action"),
                                                ASCIIToUTF16("mime/type"));
 
   EXPECT_EQ(kExpectedURL, url.spec().substr(0, kExpectedURL.size()));
 }
 
 // Test for match to the application locale - i.e. if running in "en",
 // registry will use locale_data for "en" key, with or without "all"
 // locale_data present.
 TEST_F(CWSIntentsRegistryTest, LocalizeMatchingLocale) {
-  ScopedLocale restoreLocaleOnExit;
+  extension_l10n_util::ScopedLocaleForTest restoreLocaleOnExit;
 
   std::string response = kCWSResponseValidL10n;
   response += kLocaleDataEn + std::string(",");
   response += kLocaleDataAll + std::string(",");
   response += kLocaleDataDe;
   response += kCWSResponseValidL10nPostfix;
 
   // Picks the proper locale_data based on application locale.
   extension_l10n_util::SetProcessLocale("en");
   RunRequest(kEditAction, kImagePngType, response);
@@ skipping 19 matching lines @@
   // localization data exists.
   response = kCWSResponseValidL10n;
   response += kLocaleDataEn;
   response += kCWSResponseValidL10nPostfix;
   extension_l10n_util::SetProcessLocale("de");
   RunRequest(kEditAction, kImagePngType, response);
   ASSERT_EQ(1UL, extensions_.size());
   EXPECT_EQ(std::string("__MSG_name__"),
             UTF16ToUTF8(extensions_[0].name));
 }