Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/indexed_db_factory.h

+// Copyright (c) 2013 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_FACTORY_H_
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/string16.h"
+
+namespace content {
+
+class IndexedDBCallbacksWrapper;
+class IndexedDBDatabase;
+class IndexedDBDatabaseCallbacksWrapper;
+class ScriptExecutionContext;
+
+typedef int ExceptionCode;
+
+// This class is shared by IndexedDBFactory (async) and IndexedDBFactorySync
+// (sync).
+// This is implemented by IndexedDBFactoryImpl and optionally others (in order
+// to proxy
+// calls across process barriers). All calls to these classes should be
+// non-blocking and
+// trigger work on a background thread if necessary.
+class IndexedDBFactory : public base::RefCounted<IndexedDBFactory> {
+ public:
+  static scoped_refptr<IndexedDBFactory> Create();
+
+  virtual void GetDatabaseNames(scoped_refptr<IndexedDBCallbacksWrapper>,
+                                const string16& database_identifier,
+                                ScriptExecutionContext*,
+                                const string16& data_dir) = 0;
+  virtual void Open(const string16& name,
+                    int64_t version,
+                    int64_t transaction_id,
+                    scoped_refptr<IndexedDBCallbacksWrapper>,
+                    scoped_refptr<IndexedDBDatabaseCallbacksWrapper>,
+                    const string16& database_identifier,
+                    ScriptExecutionContext*,
+                    const string16& data_dir) = 0;
+  virtual void DeleteDatabase(const string16& name,
+                              scoped_refptr<IndexedDBCallbacksWrapper>,
+                              const string16& database_identifier,
+                              ScriptExecutionContext*,
+                              const string16& data_dir) = 0;
+
+ protected:
+  virtual ~IndexedDBFactory() {}
+  friend class base::RefCounted<IndexedDBFactory>;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_H_