[Sensors] Implementation of the Generic Sensor API

third_party/WebKit/Source/modules/sensor/SensorReadingEvent.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/SensorReadingEvent.h"
 
 namespace blink {
 
-SensorReadingEvent::~SensorReadingEvent()
+SensorReadingEvent::~SensorReadingEvent() = default;
+
+SensorReadingEvent::SensorReadingEvent(const AtomicString& eventType, SensorReading* reading)
+    : Event(eventType, false, false) // Does not bubble and is not cancelable.
+    , m_reading(reading)
+{
+    DCHECK(m_reading);
+}
+
+SensorReadingEvent::SensorReadingEvent(const AtomicString& eventType, const SensorReadingEventInit& initializer)
+    : SensorReadingEvent(eventType, initializer.reading())
 {
 }
 
-SensorReadingEvent::SensorReadingEvent(const AtomicString& eventType)
-    : Event(eventType, true, false) // let default be bubbles but is not cancelable.
-    , m_reading(SensorReading::create())
-{
-}
-
-SensorReadingEvent::SensorReadingEvent(const AtomicString& eventType, SensorReading& reading)
-    : Event(eventType, true, false) // let default be bubbles but is not cancelable.
-    , m_reading(reading)
-{
-}
-
-SensorReadingEvent::SensorReadingEvent(const AtomicString& eventType, const SensorReadingEventInit& initializer)
-    : Event(eventType, initializer)
-    , m_reading(SensorReading::create())
-{
-    setCanBubble(true);
-}
-
 const AtomicString& SensorReadingEvent::interfaceName() const
 {
     return EventNames::SensorReadingEvent;
 }
 
 DEFINE_TRACE(SensorReadingEvent)
 {
     Event::trace(visitor);
     visitor->trace(m_reading);
 }
 
 } // namespace blink