Implemented profile-aware owner key loading.

chrome/browser/chromeos/policy/power_policy_browsertest.cc

Index: chrome/browser/chromeos/policy/power_policy_browsertest.cc
diff --git a/chrome/browser/chromeos/policy/power_policy_browsertest.cc b/chrome/browser/chromeos/policy/power_policy_browsertest.cc
index af8df9012f351927e810ec42a960cf89ada8b839..29979e52f66b6871c7d2df1ff0031061451a8cea 100644
--- a/chrome/browser/chromeos/policy/power_policy_browsertest.cc
+++ b/chrome/browser/chromeos/policy/power_policy_browsertest.cc
@@ -310,7 +310,8 @@ void PowerPolicyInSessionBrowserTest::SetUpOnMainThread() {
   PowerPolicyBrowserTestBase::SetUpOnMainThread();
 
   // Tell the DeviceSettingsService that there is no local owner.
-  chromeos::DeviceSettingsService::Get()->SetUsername(std::string());
+  crypto::ScopedPK11Slot slot;
+  chromeos::DeviceSettingsService::Get()->InitOwner(std::string(), slot.Pass());
 }
 
 // Verifies that device policy is applied on the login screen.