Wrap GCed raw pointer parameters of WTF::bind with Persistent

third_party/WebKit/Source/modules/sensor/Sensor.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/sensor/Sensor.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "core/events/Event.h"
@@ skipping 73 matching lines @@
 
 void Sensor::updateState(SensorState newState)
 {
     DCHECK(isMainThread());
     if (m_sensorState == newState)
         return;
 
     m_sensorState = newState;
     // Notify context that state changed.
     if (getExecutionContext())
-        getExecutionContext()->postTask(BLINK_FROM_HERE, createSameThreadTask(&Sensor::notifyStateChange, this));
+        getExecutionContext()->postTask(BLINK_FROM_HERE, createSameThreadTask(&Sensor::notifyStateChange, wrapPersistent(this)));
 }
 
 void Sensor::notifyStateChange()
 {
     dispatchEvent(Event::create(EventTypeNames::statechange));
 }
 
 void Sensor::suspend()
 {
     m_hasEventListener = false;
@@ skipping 21 matching lines @@
 
 DEFINE_TRACE(Sensor)
 {
     ActiveDOMObject::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
     PlatformEventController::trace(visitor);
     visitor->trace(m_sensorReading);
 }
 
 } // namespace blink