[IndexedDB] Adding transaction and value support to observers

third_party/WebKit/Source/modules/indexeddb/IDBObserverChanges.h

 // Copyright 2016 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 IDBObserverChanges_h
 #define IDBObserverChanges_h
 
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/indexeddb/IDBDatabase.h"
 #include "modules/indexeddb/IDBObservation.h"
 #include "modules/indexeddb/IDBTransaction.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebVector.h"
 
 namespace blink {
 
 class ScriptState;
 
 class IDBObserverChanges final : public GarbageCollected<IDBObserverChanges>,
                                  public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static IDBObserverChanges* create(IDBDatabase*,
                                     const WebVector<WebIDBObservation>&,
                                     const WebVector<int32_t>& observationIndex);
+  static IDBObserverChanges* create(IDBDatabase*,
+                                    IDBTransaction*,
+                                    const WebVector<WebIDBObservation>&,
+                                    const WebVector<int32_t>& observationIndex);
 
   DECLARE_TRACE();
 
   // Implement IDL
   IDBTransaction* transaction() const { return m_transaction.get(); }
   IDBDatabase* database() const { return m_database.get(); }
   ScriptValue records(ScriptState*);
 
  private:
   IDBObserverChanges(IDBDatabase*,
+                     IDBTransaction*,
                      const WebVector<WebIDBObservation>&,
                      const WebVector<int32_t>& observationIndex);
 
   void extractChanges(const WebVector<WebIDBObservation>&,
                       const WebVector<int32_t>& observationIndex);
 
   Member<IDBDatabase> m_database;
   Member<IDBTransaction> m_transaction;
   // Map objectStoreId to IDBObservation list.
   HeapHashMap<int64_t, HeapVector<Member<IDBObservation>>> m_records;
 };
 
 }  // namespace blink
 
 #endif  // IDBObserverChanges_h