Revert of ChromeOS: Per-user time zone: refactor tests first.

chrome/test/base/testing_profile.h

Index: chrome/test/base/testing_profile.h
diff --git a/chrome/test/base/testing_profile.h b/chrome/test/base/testing_profile.h
index 2384f0c602a94dd3adae1add3b7d2d512ff7d772..9fff4af00ac8b145478fa519467cc24e8a58bf65 100644
--- a/chrome/test/base/testing_profile.h
+++ b/chrome/test/base/testing_profile.h
@@ -18,10 +18,6 @@
 #include "components/domain_reliability/clear_mode.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 #include "extensions/features/features.h"
-
-#if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/settings/scoped_cros_settings_test_helper.h"
-#endif
 
 class BrowserContextDependencyManager;
 class ExtensionSpecialStoragePolicy;
@@ -442,11 +438,6 @@
 
   std::string profile_name_;
 
-#if defined(OS_CHROMEOS)
-  std::unique_ptr<chromeos::ScopedCrosSettingsTestHelper>
-      scoped_cros_settings_test_helper_;
-#endif  // defined(OS_CHROMEOS)
-
   std::unique_ptr<policy::PolicyService> policy_service_;
 };