IndexedDB: Prevent store/index deletion from racing ahead of use

content/browser/indexed_db/mock_indexed_db_callbacks.h

 // Copyright 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_MOCK_INDEXED_DB_CALLBACKS_H_
 #define CONTENT_BROWSER_INDEXED_DB_MOCK_INDEXED_DB_CALLBACKS_H_
 
 #include "content/browser/indexed_db/indexed_db_callbacks.h"
 #include "content/browser/indexed_db/indexed_db_connection.h"
 
 namespace content {
 
 class MockIndexedDBCallbacks : public IndexedDBCallbacks {
  public:
   MockIndexedDBCallbacks();
   MockIndexedDBCallbacks(bool expect_connection);
 
   virtual void OnSuccess() OVERRIDE;
   virtual void OnSuccess(int64) OVERRIDE;
   virtual void OnSuccess(const std::vector<base::string16>&) OVERRIDE;
+  virtual void OnSuccess(const IndexedDBKey& key) OVERRIDE;
   virtual void OnSuccess(scoped_ptr<IndexedDBConnection> connection,
                          const IndexedDBDatabaseMetadata& metadata) OVERRIDE;
   IndexedDBConnection* connection() { return connection_.get(); }
 
  protected:
   virtual ~MockIndexedDBCallbacks();
 
   scoped_ptr<IndexedDBConnection> connection_;
 
  private:
   bool expect_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(MockIndexedDBCallbacks);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_MOCK_INDEXED_DB_CALLBACKS_H_