Revert 233048 "Support policies referencing external data for de..."

trunk/src/chrome/browser/chromeos/policy/device_local_account_external_data_manager.h

Index: trunk/src/chrome/browser/chromeos/policy/device_local_account_external_data_manager.h
===================================================================
--- trunk/src/chrome/browser/chromeos/policy/device_local_account_external_data_manager.h	(revision 233050)
+++ trunk/src/chrome/browser/chromeos/policy/device_local_account_external_data_manager.h	(working copy)
@@ -1,67 +0,0 @@
-// Copyright 2013 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_POLICY_DEVICE_LOCAL_ACCOUNT_EXTERNAL_DATA_MANAGER_H_
-#define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_EXTERNAL_DATA_MANAGER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "chrome/browser/chromeos/policy/cloud_external_data_manager_base.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace policy {
-
-struct PolicyDefinitionList;
-class ResourceCache;
-
-// Downloads, verifies, caches and retrieves external data referenced by
-// policies.
-// This is the implementation for device-local accounts on Chrome OS.
-// The manager is created by the DeviceLocalAccountExternalDataService and must
-// not outlive it because the |resource_cache| is owned by the service. However,
-// the service is not the manager's sole owner: The manager lives as long as
-// either the service or a DeviceLocalAccountPolicyProvider references it. This
-// is necessary because a device-local account can be removed from policy (thus
-// removing it from the service) while a session is in progress and a provider
-// exists for the account. The manager is only destroyed when neither service
-// nor provider reference it anymore.
-class DeviceLocalAccountExternalDataManager
-    : public CloudExternalDataManagerBase,
-      public base::RefCounted<DeviceLocalAccountExternalDataManager> {
- private:
-  friend class DeviceLocalAccountExternalDataService;
-  friend class base::RefCounted<DeviceLocalAccountExternalDataManager>;
-
-  // The |policy_definitions| are used to determine the maximum size that the
-  // data referenced by each policy can have. Download scheduling, verification,
-  // caching and retrieval tasks are done via the |backend_task_runner|, which
-  // must support file I/O. Network I/O is done via the |io_task_runner|. The
-  // manager is responsible for external data references by policies in
-  // |policy_store|. Downloaded external data is stored in the |resource_cache|.
-  // The data is keyed by |account_id|, allowing one cache to be shared by any
-  // number of accounts. To ensure synchronization of operations on the shared
-  // cache, all its users must access the cache via |backend_task_runner| only.
-  DeviceLocalAccountExternalDataManager(
-      const std::string& account_id,
-      const PolicyDefinitionList* policy_definitions,
-      scoped_refptr<base::SequencedTaskRunner> backend_task_runner,
-      scoped_refptr<base::SequencedTaskRunner> io_task_runner,
-      ResourceCache* resource_cache);
-  virtual ~DeviceLocalAccountExternalDataManager();
-
-  // CloudExternalDataManagerBase:
-  virtual void OnPolicyStoreLoaded() OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountExternalDataManager);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_EXTERNAL_DATA_MANAGER_H_