Move ManagedModePolicyProvider functionality to ManagedUserSettingsService.

chrome/browser/policy/managed_mode_policy_provider.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_POLICY_MANAGED_MODE_POLICY_PROVIDER_H_
-#define CHROME_BROWSER_POLICY_MANAGED_MODE_POLICY_PROVIDER_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/prefs/pref_store.h"
-#include "chrome/browser/policy/configuration_policy_provider.h"
-#include "sync/api/sync_error_factory.h"
-#include "sync/api/syncable_service.h"
-
-class PersistentPrefStore;
-class Profile;
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace policy {
-
-// This class syncs managed user settings from a server, which are mapped to
-// policies. The downloaded settings are persisted in a PrefStore.
-// Settings are key-value pairs. The key uniquely identifies the setting, and
-// in most cases corresponds to a policy key. The value is a string containing
-// a JSON serialization of an arbitrary value, which is the value of the policy.
-//
-// There are two kinds of settings handled by this class: Atomic and split
-// settings.
-// Atomic settings consist of a single key (that corresponds to a policy name)
-// and a single (arbitrary) value.
-// Split settings encode a dictionary value and are stored as multiple Sync
-// items, one for each dictionary entry. The key for each of these Sync items
-// is the key of the split setting, followed by a separator (':') and the key
-// for the dictionary entry. The value of the Sync item is the value of the
-// dictionary entry.
-//
-// As an example, a split setting with key "Moose" and value
-//   {
-//     "foo": "bar",
-//     "baz": "blurp"
-//   }
-// would be encoded as two sync items, one with key "Moose:foo" and value "bar",
-// and one with key "Moose:baz" and value "blurp".
-//
-// TODO(bauerb): This should be split up into a SyncableService and a
-// ConfigurationPolicyProvider.
-class ManagedModePolicyProvider
-    : public ConfigurationPolicyProvider,
-      public PrefStore::Observer,
-      public syncer::SyncableService {
- public:
-  // Creates a new ManagedModePolicyProvider that caches its policies in a JSON
-  // file inside the profile folder. |sequenced_task_runner| ensures that all
-  // file I/O operations are executed in the order that does not collide
-  // with Profile's file operations. If |force_immediate_policy_load| is true,
-  // then the underlying policies are loaded immediately before this call
-  // returns, otherwise they will be loaded asynchronously in the background.
-  static scoped_ptr<ManagedModePolicyProvider> Create(
-      Profile* profile,
-      base::SequencedTaskRunner* sequenced_task_runner,
-      bool force_immediate_policy_load);
-
-  // Use this constructor to inject a different PrefStore (e.g. for testing).
-  explicit ManagedModePolicyProvider(PersistentPrefStore* store);
-  virtual ~ManagedModePolicyProvider();
-
-  // Sets all local policies, i.e. policies that will not be configured via
-  // the server.
-  void InitLocalPolicies();
-
-  // Clears all managed user settings and items.
-  void Clear();
-
-  // Constructs a key for a split managed user setting from a prefix and a
-  // variable key.
-  static std::string MakeSplitSettingKey(const std::string& prefix,
-                                         const std::string& key);
-
-  // Uploads an item to the Sync server. Items are the same data structure as
-  // managed user settings (i.e. key-value pairs, as described at the top of
-  // the file), but they are only uploaded (whereas managed user settings are
-  // only downloaded), and never passed to the policy system.
-  // An example of an uploaded item is an access request to a blocked URL.
-  void UploadItem(const std::string& key, scoped_ptr<Value> value);
-
-  // Sets the policy with the given |key| to a copy of the given |value|.
-  // Note that policies are updated asynchronously, so the policy won't take
-  // effect immediately after this method.
-  void SetLocalPolicyForTesting(const std::string& key,
-                                scoped_ptr<base::Value> value);
-
-  // Public for testing.
-  static syncer::SyncData CreateSyncDataForPolicy(const std::string& name,
-                                                  const Value* value);
-
-  // ConfigurationPolicyProvider implementation:
-  virtual void Shutdown() OVERRIDE;
-  virtual void RefreshPolicies() OVERRIDE;
-  virtual bool IsInitializationComplete(PolicyDomain domain) const OVERRIDE;
-
-  // PrefStore::Observer implementation:
-  virtual void OnPrefValueChanged(const std::string& key) OVERRIDE;
-  virtual void OnInitializationCompleted(bool success) OVERRIDE;
-
-  // SyncableService implementation:
-  virtual syncer::SyncMergeResult MergeDataAndStartSyncing(
-      syncer::ModelType type,
-      const syncer::SyncDataList& initial_sync_data,
-      scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
-      scoped_ptr<syncer::SyncErrorFactory> error_handler) OVERRIDE;
-  virtual void StopSyncing(syncer::ModelType type) OVERRIDE;
-  virtual syncer::SyncDataList GetAllSyncData(
-      syncer::ModelType type) const OVERRIDE;
-  virtual syncer::SyncError ProcessSyncChanges(
-      const tracked_objects::Location& from_here,
-      const syncer::SyncChangeList& change_list) OVERRIDE;
-
- private:
-  base::DictionaryValue* GetOrCreateDictionary(const std::string& key) const;
-  base::DictionaryValue* GetAtomicSettings() const;
-  base::DictionaryValue* GetSplitSettings() const;
-  base::DictionaryValue* GetQueuedItems() const;
-
-  // Returns the dictionary where a given Sync item should be stored, depending
-  // on whether the managed user setting is atomic or split. In case of a split
-  // setting, the split setting prefix of |key| is removed, so that |key| can
-  // be used to update the returned dictionary.
-  DictionaryValue* GetDictionaryAndSplitKey(std::string* key) const;
-  void UpdatePolicyFromCache();
-
-  // Used for persisting policies. Unlike other PrefStores, this one is not
-  // hooked up to the PrefService.
-  scoped_refptr<PersistentPrefStore> store_;
-
-  // A set of local policies that are fixed and not configured remotely.
-  scoped_ptr<base::DictionaryValue> local_policies_;
-
-  scoped_ptr<syncer::SyncChangeProcessor> sync_processor_;
-  scoped_ptr<syncer::SyncErrorFactory> error_handler_;
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_MANAGED_MODE_POLICY_PROVIDER_H_