[IndexedDB] Refactoring to remove ref ptrs and host transaction ids.

content/browser/indexed_db/indexed_db_callbacks.h

 // Copyright (c) 2012 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_CALLBACKS_H_
 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 13 matching lines @@
 #include "url/origin.h"
 
 namespace content {
 class IndexedDBBlobInfo;
 class IndexedDBConnection;
 class IndexedDBCursor;
 class IndexedDBDatabase;
 struct IndexedDBDataLossInfo;
 struct IndexedDBDatabaseMetadata;
 struct IndexedDBReturnValue;
+class IndexedDBTransaction;
 struct IndexedDBValue;
 
 class CONTENT_EXPORT IndexedDBCallbacks
     : public base::RefCounted<IndexedDBCallbacks> {
  public:
   IndexedDBCallbacks(
       scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
       const url::Origin& origin,
       ::indexed_db::mojom::CallbacksAssociatedPtrInfo callbacks_info);
 
   virtual void OnError(const IndexedDBDatabaseError& error);
 
   // IndexedDBFactory::GetDatabaseNames
   virtual void OnSuccess(const std::vector<base::string16>& string);
 
   // IndexedDBFactory::Open / DeleteDatabase
   virtual void OnBlocked(int64_t existing_version);
 
   // IndexedDBFactory::Open
   virtual void OnUpgradeNeeded(
       int64_t old_version,
       std::unique_ptr<IndexedDBConnection> connection,
+      IndexedDBTransaction* transaction,
       const content::IndexedDBDatabaseMetadata& metadata,
       const IndexedDBDataLossInfo& data_loss_info);
   virtual void OnSuccess(std::unique_ptr<IndexedDBConnection> connection,
                          const content::IndexedDBDatabaseMetadata& metadata);
 
   // IndexedDBDatabase::OpenCursor
-  virtual void OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
+  virtual void OnSuccess(std::unique_ptr<IndexedDBCursor> cursor,
                          const IndexedDBKey& key,
                          const IndexedDBKey& primary_key,
                          IndexedDBValue* value);
 
   // IndexedDBCursor::Continue / Advance
   virtual void OnSuccess(const IndexedDBKey& key,
                          const IndexedDBKey& primary_key,
                          IndexedDBValue* value);
 
   // IndexedDBCursor::PrefetchContinue
@@ skipping 58 matching lines @@
 
   std::unique_ptr<IOThreadHelper, BrowserThread::DeleteOnIOThread> io_helper_;
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBCallbacks);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_H_