Revert of Implemented OwnerSettingsService::Set() method.

chrome/browser/chromeos/settings/session_manager_operation.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_SETTINGS_SESSION_MANAGER_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_SETTINGS_SESSION_MANAGER_OPERATION_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
@@ skipping 171 matching lines @@
       scoped_ptr<enterprise_management::PolicyData> new_policy);
   virtual ~SignAndStoreSettingsOperation();
 
   // SessionManagerOperation:
   virtual void Run() override;
 
  private:
   void StartSigning(bool has_private_key);
 
   // Stores the signed device settings blob.
-  void StoreDeviceSettings(
-      scoped_ptr<enterprise_management::PolicyFetchResponse> policy_response);
+  void StoreDeviceSettingsBlob(std::string device_settings_blob);
 
   // Handles the result of the store operation and triggers the load.
   void HandleStoreResult(bool success);
 
   scoped_ptr<enterprise_management::PolicyData> new_policy_;
 
   base::WeakPtrFactory<SignAndStoreSettingsOperation> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SignAndStoreSettingsOperation);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_SESSION_MANAGER_OPERATION_H_