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

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 6e0941e76c27287f7942f28dfc655c75bef3b05f..69df0245b1e161b7d0fa18e48fa0057250808177 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -26,6 +26,7 @@
 #include "chrome/browser/bookmarks/managed_bookmark_service_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/favicon/chrome_fallback_icon_client_factory.h"
 #include "chrome/browser/favicon/fallback_icon_service_factory.h"
@@ -428,6 +429,12 @@ void TestingProfile::Init() {
              content::BrowserThread::UI) ||
          content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
+#if defined(OS_CHROMEOS)
+  if (!chromeos::CrosSettings::IsInitialized())
+    scoped_cros_settings_test_helper_.reset(
+        new chromeos::ScopedCrosSettingsTestHelper);
+#endif
+
   set_is_guest_profile(guest_session_);
 
   BrowserContext::Initialize(this, profile_path_);