[sensors] Ambient light sensor bindings implementation

third_party/WebKit/Source/modules/sensor/SensorReading.h

 // 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.
 
 #ifndef SensorReading_h
 #define SensorReading_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/DOMHighResTimeStamp.h"
 #include "core/dom/DOMTimeStamp.h"
 #include "modules/sensor/SensorProxy.h"
 
 namespace blink {
 
 class ExecutionContext;
 class ScriptState;
 
 class SensorReading
-    : public GarbageCollected<SensorReading>
+    : public GarbageCollectedFinalized<SensorReading>
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     DECLARE_VIRTUAL_TRACE();
 
     DOMHighResTimeStamp timeStamp(ScriptState*) const;
 
     // Returns 'true' if the current reading value is different than the given
     // previous one; otherwise returns 'false'.
-    virtual bool isReadingUpdated(const SensorProxy::Reading& previous) const = 0;
+    virtual bool isReadingUpdated(const SensorProxy::Reading& previous) const;
+
+    // Required by GarbageCollectedFinalized.

[haraken, 2016/09/13 09:45:04]

You can use GarbageCollected.

[shalamov, 2016/09/13 10:34:17]

I made SensorReading GarbageCollectedMixin and derived class
GarbageCollectedFinalized.

+    virtual ~SensorReading();
 
 protected:
     explicit SensorReading(SensorProxy*);
 
 protected:
     Member<SensorProxy> m_sensorProxy;
 };
 
 } // namepsace blink
 
 #endif // SensorReading_h