Implement new invalidations ack tracking system

sync/notifier/fake_invalidation_state_tracker.h

Index: sync/notifier/fake_invalidation_state_tracker.h
diff --git a/sync/notifier/fake_invalidation_state_tracker.h b/sync/notifier/fake_invalidation_state_tracker.h
index b43699bbd28e56926a200680496ee0c2b5c50ea9..d1daaba121f17730b820d96f15206cb5272c4174 100644
--- a/sync/notifier/fake_invalidation_state_tracker.h
+++ b/sync/notifier/fake_invalidation_state_tracker.h
@@ -19,32 +19,22 @@ class FakeInvalidationStateTracker
   FakeInvalidationStateTracker();
   virtual ~FakeInvalidationStateTracker();
 
-  int64 GetMaxVersion(const invalidation::ObjectId& id) const;
-
   // InvalidationStateTracker implementation.
-  virtual InvalidationStateMap GetAllInvalidationStates() const OVERRIDE;
-  virtual void SetMaxVersionAndPayload(const invalidation::ObjectId& id,
-                                       int64 max_version,
-                                       const std::string& payload) OVERRIDE;
-  virtual void Forget(const 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 UnackedInvalidationsMap& states) OVERRIDE;
+  virtual UnackedInvalidationsMap GetSavedInvalidations() const OVERRIDE;
   virtual void Clear() OVERRIDE;
-  virtual void GenerateAckHandles(
-      const ObjectIdSet& ids,
-      const scoped_refptr<base::TaskRunner>& task_runner,
-      base::Callback<void(const AckHandleMap&)> callback) OVERRIDE;
-  virtual void Acknowledge(const invalidation::ObjectId& id,
-                           const AckHandle& ack_handle) OVERRIDE;
 
   static const int64 kMinVersion;
 
  private:
-  InvalidationStateMap state_map_;
   std::string invalidator_client_id_;
   std::string bootstrap_data_;
+  UnackedInvalidationsMap unacked_invalidations_map_;
 };
 
 }  // namespace syncer