Disambiguate LifecycleObserver::contextDestroyed

third_party/WebKit/Source/core/streams/UnderlyingSourceBase.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 "core/streams/UnderlyingSourceBase.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "core/streams/ReadableStreamController.h"
@@ skipping 40 matching lines @@
 }
 
 bool UnderlyingSourceBase::hasPendingActivity() const {
   // This will return false within a finite time period _assuming_ that
   // consumers use the controller to close or error the stream.
   // Browser-created readable streams should always close or error within a
   // finite time period, due to timeouts etc.
   return m_controller && m_controller->isActive() && m_isStreamLocked;
 }
 
-void UnderlyingSourceBase::contextDestroyed() {
+void UnderlyingSourceBase::contextDestroyed(ExecutionContext*) {
   if (m_controller) {
     m_controller->noteHasBeenCanceled();
     m_controller.clear();
   }
 }
 
 DEFINE_TRACE(UnderlyingSourceBase) {
   ContextLifecycleObserver::trace(visitor);
   visitor->trace(m_controller);
 }
 
 }  // namespace blink