Introduce a layering in the invalidation component as public and impl

components/invalidation/object_id_invalidation_map.h

-// Copyright 2014 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 COMPONENTS_INVALIDATION_OBJECT_ID_INVALIDATION_MAP_H_
-#define COMPONENTS_INVALIDATION_OBJECT_ID_INVALIDATION_MAP_H_
-
-#include <map>
-#include <vector>
-
-#include "components/invalidation/invalidation.h"
-#include "components/invalidation/invalidation_export.h"
-#include "components/invalidation/invalidation_util.h"
-#include "components/invalidation/single_object_invalidation_set.h"
-
-namespace syncer {
-
-// A set of notifications with some helper methods to organize them by object ID
-// and version number.
-class INVALIDATION_EXPORT ObjectIdInvalidationMap {
-  public:
-   // Creates an invalidation map that includes an 'unknown version'
-   // invalidation for each specified ID in |ids|.
-   static ObjectIdInvalidationMap InvalidateAll(const ObjectIdSet& ids);
-
-   ObjectIdInvalidationMap();
-   ~ObjectIdInvalidationMap();
-
-   // Returns set of ObjectIds for which at least one invalidation is present.
-   ObjectIdSet GetObjectIds() const;
-
-   // Returns true if this map contains no invalidations.
-   bool Empty() const;
-
-   // Returns true if both maps contain the same set of invalidations.
-   bool operator==(const ObjectIdInvalidationMap& other) const;
-
-   // Inserts a new invalidation into this map.
-   void Insert(const Invalidation& invalidation);
-
-   // Returns a new map containing the subset of invaliations from this map
-   // whose IDs were in the specified |ids| set.
-   ObjectIdInvalidationMap GetSubsetWithObjectIds(const ObjectIdSet& ids) const;
-
-   // Returns the subset of invalidations with IDs matching |id|.
-   const SingleObjectInvalidationSet& ForObject(
-       invalidation::ObjectId id) const;
-
-   // Returns the contents of this map in a single vector.
-   void GetAllInvalidations(std::vector<syncer::Invalidation>* out) const;
-
-   // Call Acknowledge() on all contained Invalidations.
-   void AcknowledgeAll() const;
-
-   // Serialize this map to a value.
-   scoped_ptr<base::ListValue> ToValue() const;
-
-   // Deserialize the value into a map and use it to re-initialize this object.
-   bool ResetFromValue(const base::ListValue& value);
-
-   // Prints the contentes of this map as a human-readable string.
-   std::string ToString() const;
-
-  private:
-   typedef std::map<invalidation::ObjectId,
-                    SingleObjectInvalidationSet,
-                    ObjectIdLessThan> IdToListMap;
-
-   ObjectIdInvalidationMap(const IdToListMap& map);
-
-   IdToListMap map_;
-};
-
-}  // namespace syncer
-
-#endif  // COMPONENTS_INVALIDATION_OBJECT_ID_INVALIDATION_MAP_H_