Switch from SignedSettings to DeviceSettingsService.

chrome/browser/chromeos/settings/device_settings_service.cc

Index: chrome/browser/chromeos/settings/device_settings_service.cc
diff --git a/chrome/browser/chromeos/settings/device_settings_service.cc b/chrome/browser/chromeos/settings/device_settings_service.cc
index c9b71edb4b7a7df32a46c47b137dee2f6dcb8d3e..c39e0d0389e584180e796fd89c4f2c24787432a4 100644
--- a/chrome/browser/chromeos/settings/device_settings_service.cc
+++ b/chrome/browser/chromeos/settings/device_settings_service.cc
@@ -242,13 +242,10 @@ void DeviceSettingsService::HandleCompletedOperation(
   }
   SetOwnershipStatus(ownership_status);
 
+  bool new_owner_key = false;
   if (owner_key_.get() != new_key.get()) {
     owner_key_ = new_key;
-    FOR_EACH_OBSERVER(Observer, observers_, OwnershipStatusChanged());
-    content::NotificationService::current()->Notify(
-        chrome::NOTIFICATION_OWNERSHIP_STATUS_CHANGED,
-        content::Source<DeviceSettingsService>(this),
-        content::NotificationService::NoDetails());
+    new_owner_key = true;
   }
 
   if (status == STORE_SUCCESS) {
@@ -258,6 +255,14 @@ void DeviceSettingsService::HandleCompletedOperation(
     LOG(ERROR) << "Session manager operation failed: " << status;
   }
 
+  if (new_owner_key) {
+    FOR_EACH_OBSERVER(Observer, observers_, OwnershipStatusChanged());
+    content::NotificationService::current()->Notify(
+        chrome::NOTIFICATION_OWNERSHIP_STATUS_CHANGED,
+        content::Source<DeviceSettingsService>(this),
+        content::NotificationService::NoDetails());
+  }
+
   FOR_EACH_OBSERVER(Observer, observers_, DeviceSettingsUpdated());
 
   std::vector<OwnershipStatusCallback> callbacks;