Index: content/browser/indexed_db/indexed_db_open_request_observer.h |
diff --git a/content/browser/indexed_db/indexed_db_open_request_observer.h b/content/browser/indexed_db/indexed_db_open_request_observer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ebd0968da7a411cf6f0bfb236805000c0930f467 |
--- /dev/null |
+++ b/content/browser/indexed_db/indexed_db_open_request_observer.h |
@@ -0,0 +1,48 @@ |
+// 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_OPEN_REQUEST_OBSERVER_H_ |
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_OPEN_REQUEST_OBSERVER_H_ |
+ |
+#include <memory> |
+ |
+#include "base/callback.h" |
+#include "base/macros.h" |
+#include "base/memory/ref_counted.h" |
+#include "content/common/content_export.h" |
+ |
+namespace content { |
+ |
+class IndexedDBConnection; |
+struct IndexedDBDatabaseMetadata; |
+struct IndexedDBDataLossInfo; |
+ |
+// Used during database open (and delete). |
+class CONTENT_EXPORT IndexedDBOpenRequestObserver |
+ : public base::RefCounted<IndexedDBOpenRequestObserver> { |
+ public: |
+ IndexedDBOpenRequestObserver() {} |
+ |
+ // Called when a database open is blocked. |
+ virtual void OnBlocked(int64_t old_version) = 0; |
+ |
+ // Called during database upgrade. |
+ virtual void OnUpgradeNeeded( |
+ int64_t old_version, |
+ IndexedDBConnection* connection, |
+ const IndexedDBDataLossInfo& data_loss_info, |
+ const IndexedDBDatabaseMetadata& index_metadata) = 0; |
+ |
+ protected: |
+ virtual ~IndexedDBOpenRequestObserver() {} |
+ |
+ private: |
+ friend class base::RefCounted<IndexedDBOpenRequestObserver>; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(IndexedDBOpenRequestObserver); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_OPEN_REQUEST_OBSERVER_H_ |