[IndexedDB] Propogating changes to observers : Renderer

third_party/WebKit/Source/bindings/modules/v8/V8IDBObserverCallback.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 V8IDBObserverCallback_h
 #define V8IDBObserverCallback_h
 
 #include "bindings/core/v8/ActiveDOMCallback.h"
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "modules/indexeddb/IDBObserverCallback.h"
 
 namespace blink {
 
 class V8IDBObserverCallback final : public IDBObserverCallback, public ActiveDOMCallback {
     USING_GARBAGE_COLLECTED_MIXIN(V8IDBObserverCallback);
 
 public:
     V8IDBObserverCallback(v8::Local<v8::Function>, v8::Local<v8::Object>, ScriptState*);
     ~V8IDBObserverCallback() override;
 
     DECLARE_VIRTUAL_TRACE();
 
+    void handleEvent(IDBObserverChanges&, IDBObserver&) override;
     ExecutionContext* getExecutionContext() const override { return ContextLifecycleObserver::getExecutionContext(); }
 private:
     ScopedPersistent<v8::Function> m_callback;
     RefPtr<ScriptState> m_scriptState;
 };
 
 } // namespace blink
 #endif // V8IDBObserverCallback_h