Index: content/browser/indexed_db/indexed_db_change_handler.h |
diff --git a/content/browser/indexed_db/indexed_db_change_handler.h b/content/browser/indexed_db/indexed_db_change_handler.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9c4d509e18a4bc89b76c06596f460f3ff335c145 |
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+++ b/content/browser/indexed_db/indexed_db_change_handler.h |
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+// Copyright 2016 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CHANGE_HANDLER_H_ |
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CHANGE_HANDLER_H_ |
+ |
+#include <memory> |
+ |
+#include "base/macros.h" |
+#include "base/memory/ref_counted.h" |
+#include "base/memory/weak_ptr.h" |
+#include "content/common/content_export.h" |
+ |
+namespace content { |
+ |
+class IndexedDBConnection; |
+class IndexedDBDatabaseError; |
+class IndexedDBObserverChanges; |
+ |
+// A utility class to handle certain change events and notify recipients of |
+// those changes. |
+class CONTENT_EXPORT IndexedDBChangeHandler |
+ : public base::RefCounted<IndexedDBChangeHandler> { |
+ public: |
+ virtual void OnForcedClose() = 0; |
+ virtual void OnVersionChange(int64_t old_version, int64_t new_version) = 0; |
+ |
+ virtual void OnAbort(int64_t transaction_id, |
+ const IndexedDBDatabaseError& error) = 0; |
+ virtual void OnComplete(int64_t transaction_id) = 0; |
+ virtual void OnDatabaseChange( |
+ int32_t ipc_database_id, |
+ std::unique_ptr<IndexedDBObserverChanges> changes) = 0; |
+ |
+ virtual void SetConnection(base::WeakPtr<IndexedDBConnection> connection) = 0; |
+ |
+ protected: |
+ IndexedDBChangeHandler() {} |
+ virtual ~IndexedDBChangeHandler() {} |
+ |
+ private: |
+ friend class base::RefCounted<IndexedDBChangeHandler>; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(IndexedDBChangeHandler); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CHANGE_HANDLER_H_ |