Implement new invalidations ack tracking system

chrome/browser/invalidation/invalidator_storage.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.
 //
 // Wraps PrefService in an InvalidationStateTracker to allow SyncNotifiers
 // to use PrefService as persistence for invalidation state. It is not thread
 // safe, and lives on the UI thread.
 
 #ifndef CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_
 #define CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "sync/notifier/invalidation_state_tracker.h"
+#include "sync/notifier/unacked_invalidation_set.h"
 
 class PrefService;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace invalidation {
 
 class InvalidatorStorage : public base::SupportsWeakPtr<InvalidatorStorage>,
                            public syncer::InvalidationStateTracker {
  public:
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // |pref_service| may not be NULL. Does not own |pref_service|.
   explicit InvalidatorStorage(PrefService* pref_service);
   virtual ~InvalidatorStorage();
 
   // InvalidationStateTracker implementation.
-  virtual syncer::InvalidationStateMap GetAllInvalidationStates() const
-      OVERRIDE;
-  virtual void SetMaxVersionAndPayload(const invalidation::ObjectId& id,
-                                       int64 max_version,
-                                       const std::string& payload) OVERRIDE;
-  virtual void Forget(const syncer::ObjectIdSet& ids) OVERRIDE;
   virtual void SetInvalidatorClientId(const std::string& client_id) OVERRIDE;
   virtual std::string GetInvalidatorClientId() const OVERRIDE;
   virtual void SetBootstrapData(const std::string& data) OVERRIDE;
   virtual std::string GetBootstrapData() const OVERRIDE;
+  virtual void SetSavedInvalidations(
+      const syncer::UnackedInvalidationsMap& map) OVERRIDE;
+  virtual syncer::UnackedInvalidationsMap GetSavedInvalidations()
+      const OVERRIDE;
   virtual void Clear() OVERRIDE;
-  virtual void GenerateAckHandles(
-      const syncer::ObjectIdSet& ids,
-      const scoped_refptr<base::TaskRunner>& task_runner,
-      base::Callback<void(const syncer::AckHandleMap&)> callback) OVERRIDE;
-  virtual void Acknowledge(const invalidation::ObjectId& id,
-                           const syncer::AckHandle& ack_handle) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, SerializeEmptyMap);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeFromListOutOfRange);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeFromListInvalidFormat);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeFromListWithDuplicates);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeFromEmptyList);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeFromListBasic);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeFromListMissingOptionalValues);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapOutOfRange);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapInvalidFormat);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
                            DeserializeMapEmptyDictionary);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapBasic);
   FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, MigrateLegacyPreferences);
 
   base::ThreadChecker thread_checker_;
 
-  // Helpers to convert between InvalidationStateMap <--> ListValue.
-  static void DeserializeFromList(
-      const base::ListValue& state_map_list,
-      syncer::InvalidationStateMap* state_map);
-  static void SerializeToList(
-      const syncer::InvalidationStateMap& state_map,
-      base::ListValue* state_map_list);
-
-  // Code for migrating from old MaxInvalidationVersions pref, which was a map
-  // from sync types to max invalidation versions.
-  void MigrateMaxInvalidationVersionsPref();
-  static void DeserializeMap(const base::DictionaryValue* max_versions_dict,
-                             syncer::InvalidationStateMap* map);
-
   PrefService* const pref_service_;
 
   DISALLOW_COPY_AND_ASSIGN(InvalidatorStorage);
 };
 
 }  // namespace invalidation
 
 #endif  // CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_