[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 41 matching lines @@
   // IndexedDBFactory::Open
   virtual void OnUpgradeNeeded(
       int64_t old_version,
       std::unique_ptr<IndexedDBConnection> connection,
       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 19 matching lines @@
 
   // IndexedDBCursor::Continue / Advance (when complete)
   virtual void OnSuccess();
 
   // Checks to see if the associated dispatcher host is still connected. If
   // not this request can be dropped.
   virtual bool IsValid() const;
 
   void SetConnectionOpenStartTime(const base::TimeTicks& start_time);
 
-  void set_host_transaction_id(int64_t host_transaction_id) {
-    host_transaction_id_ = host_transaction_id;
-  }
-
  protected:
   virtual ~IndexedDBCallbacks();
 
  private:
   void RegisterBlobsAndSend(const std::vector<IndexedDBBlobInfo>& blob_info,
                             const base::Closure& callback);
 
   friend class base::RefCounted<IndexedDBCallbacks>;
 
   class IOThreadHelper;
 
   // Originally from IndexedDBCallbacks:
   scoped_refptr<IndexedDBDispatcherHost> dispatcher_host_;
 
   // IndexedDBDatabase callbacks ------------------------
-  int64_t host_transaction_id_;
   url::Origin origin_;
   bool database_sent_ = false;
 
   // Used to assert that OnSuccess is only called if there was no data loss.
   blink::WebIDBDataLoss data_loss_;
 
   // The "blocked" event should be sent at most once per request.
   bool sent_blocked_;
   base::TimeTicks connection_open_start_time_;
 
   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_