bindings: Stop passing ExceptionState to callback function

third_party/WebKit/Source/modules/indexeddb/IDBObserver.cpp

 // 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.
 
 #include "modules/indexeddb/IDBObserver.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/modules/v8/IDBObserverCallback.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
 #include "bindings/modules/v8/V8BindingForModules.h"
@@ skipping 84 matching lines @@
 
 void IDBObserver::removeObserver(int32_t id) {
   m_observerIds.remove(id);
 }
 
 void IDBObserver::onChange(int32_t id,
                            const WebVector<WebIDBObservation>& observations,
                            const WebVector<int32_t>& observationIndex) {
   auto it = m_observerIds.find(id);
   DCHECK(it != m_observerIds.end());
-  // TODO(bashi): Make sure that using TrackExceptionState is OK.
-  // crbug.com/653769
-  TrackExceptionState exceptionState;
   m_callback->call(
-      m_scriptState.get(), this, exceptionState,
+      m_scriptState.get(), this,
       IDBObserverChanges::create(it->value, observations, observationIndex));
 }
 
 DEFINE_TRACE(IDBObserver) {
   visitor->trace(m_callback);
   visitor->trace(m_observerIds);
 }
 
 }  // namespace blink