| // 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_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTOR_H_ |
| #define COMPONENTS_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTOR_H_ |
| |
| #include <cstddef> |
| #include <memory> |
| |
| |
| namespace syncer { |
| |
| class CommitContribution; |
| |
| // This class represents a source of items to commit to the sync server. |
| // |
| // When asked, it can return CommitContribution objects that contain a set of |
| // items to be committed from this source. |
| class CommitContributor { |
| public: |
| CommitContributor(); |
| virtual ~CommitContributor() = 0; |
| |
| // Gathers up to |max_entries| unsynced items from this contributor into a |
| // CommitContribution. Returns null when the contributor has nothing to |
| // contribute. |
| virtual std::unique_ptr<CommitContribution> GetContribution( |
| size_t max_entries) = 0; |
| }; |
| |
| } // namespace syncer |
| |
| #endif // COMPONENTS_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTOR_H_ |