Instantiation of OwnerKeyUtil is delegated to OwnerSettingsServiceFactory.

chrome/browser/chromeos/settings/session_manager_operation_unittest.cc

Index: chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
diff --git a/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc b/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
index 86568f5ec80031ab50bf8c5a228c91edaa64c8da..4e7df5de93aa4f96c4894415c6425ed6356f62e0 100644
--- a/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
+++ b/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
@@ -39,19 +39,19 @@ class SessionManagerOperationTest : public testing::Test {
       : ui_thread_(content::BrowserThread::UI, &message_loop_),
         file_thread_(content::BrowserThread::FILE, &message_loop_),
         owner_key_util_(new ownership::MockOwnerKeyUtil()),
-        validated_(false) {}
+        validated_(false) {
+    OwnerSettingsServiceFactory::GetInstance()->set_owner_key_util_for_testing(
+        owner_key_util_);
+  }
 
   virtual void SetUp() OVERRIDE {
     policy_.payload().mutable_pinned_apps()->add_app_id("fake-app");
     policy_.Build();
 
     profile_.reset(new TestingProfile());
-    OwnerSettingsService::SetOwnerKeyUtilForTesting(owner_key_util_);
     service_ = OwnerSettingsServiceFactory::GetForProfile(profile_.get());
   }
 
-  void TearDown() { OwnerSettingsService::SetOwnerKeyUtilForTesting(NULL); }
-
   MOCK_METHOD2(OnOperationCompleted,
                void(SessionManagerOperation*, DeviceSettingsService::Status));