Tell IDB frontend about data loss

content/browser/indexed_db/indexed_db_callbacks_wrapper.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_CALLBACKS_WRAPPER_H_
 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_WRAPPER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 56 matching lines @@
   virtual void OnSuccessWithPrefetch(
       const std::vector<IndexedDBKey>& keys,
       const std::vector<IndexedDBKey>& primary_keys,
       const std::vector<std::vector<char> >& values);
   // From IDBFactory.open()/deleteDatabase()
   virtual void OnBlocked(int64 existing_version);
   // From IDBFactory.open()
   virtual void OnUpgradeNeeded(
       int64 old_version,
       scoped_refptr<IndexedDBDatabase> db,
-      const content::IndexedDBDatabaseMetadata& metadata);
+      const content::IndexedDBDatabaseMetadata& metadata,
+      bool data_loss);
   virtual void OnSuccess(scoped_refptr<IndexedDBDatabase> db,
                          const content::IndexedDBDatabaseMetadata& metadata);
   virtual void SetDatabaseCallbacks(
       scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks);
 
  protected:
   virtual ~IndexedDBCallbacksWrapper();
   explicit IndexedDBCallbacksWrapper(IndexedDBCallbacksBase* callbacks);
 
  private:
   friend class base::RefCounted<IndexedDBCallbacksWrapper>;
   scoped_ptr<WebIDBDatabaseImpl> web_database_impl_;
   scoped_ptr<IndexedDBCallbacksBase> callbacks_;
   scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks_;
   bool did_complete_;
   bool did_create_proxy_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_WRAPPER_H_