[v8 gc] Introduce a base class for all objects that can have pending activity

third_party/WebKit/Source/modules/netinfo/NetworkInformation.cpp

 // Copyright 2014 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/netinfo/NetworkInformation.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/events/Event.h"
 #include "core/page/NetworkStateNotifier.h"
 #include "modules/EventTargetModules.h"
@@ skipping 141 matching lines @@
 
 void NetworkInformation::stopObserving()
 {
     if (m_observing) {
         networkStateNotifier().removeObserver(this, getExecutionContext());
         m_observing = false;
     }
 }
 
 NetworkInformation::NetworkInformation(ExecutionContext* context)
-    : ActiveDOMObject(context)
+    : ActiveScriptWrappable(this)
+    , ActiveDOMObject(context)
     , m_type(networkStateNotifier().connectionType())
     , m_downlinkMaxMbps(networkStateNotifier().maxBandwidth())
     , m_observing(false)
     , m_contextStopped(false)
 {
 }
 
 DEFINE_TRACE(NetworkInformation)
 {
     RefCountedGarbageCollectedEventTargetWithInlineData<NetworkInformation>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink