ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

third_party/WebKit/Source/modules/battery/BatteryManager.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/battery/BatteryManager.h"
 
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "modules/battery/BatteryDispatcher.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 BatteryManager* BatteryManager::create(ExecutionContext* context) {
   BatteryManager* batteryManager = new BatteryManager(context);
   batteryManager->suspendIfNeeded();
   return batteryManager;
 }
 
 BatteryManager::~BatteryManager() {}
 
 BatteryManager::BatteryManager(ExecutionContext* context)
-    : ActiveScriptWrappable(this),
+    : ActiveScriptWrappable<BatteryManager>(this),
       SuspendableObject(context),
       PlatformEventController(toDocument(context)->page()) {}
 
 ScriptPromise BatteryManager::startRequest(ScriptState* scriptState) {
   if (!m_batteryProperty) {
     m_batteryProperty = new BatteryProperty(scriptState->getExecutionContext(),
                                             this, BatteryProperty::Ready);
 
     // If the context is in a stopped state already, do not start updating.
     if (!getExecutionContext() || getExecutionContext()->isContextDestroyed()) {
@@ skipping 85 matching lines @@
 }
 
 DEFINE_TRACE(BatteryManager) {
   visitor->trace(m_batteryProperty);
   PlatformEventController::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
   SuspendableObject::trace(visitor);
 }
 
 }  // namespace blink