[Sensors] Align sensor reading attribute implementation with the specification

third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.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 AmbientLightSensorReading_h
 #define AmbientLightSensorReading_h
 
 #include "modules/sensor/AmbientLightSensorReadingInit.h"
 #include "modules/sensor/SensorReading.h"
 
 namespace blink {
 
 class AmbientLightSensorReading final : public SensorReading {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static AmbientLightSensorReading* create(
       const AmbientLightSensorReadingInit& init) {
     return new AmbientLightSensorReading(init);
   }
 
-  static AmbientLightSensorReading* create(SensorProxy* proxy) {
-    return new AmbientLightSensorReading(proxy);
+  static AmbientLightSensorReading* create(const device::SensorReading& data) {
+    return new AmbientLightSensorReading(data);
   }
 
   ~AmbientLightSensorReading() override;
 
   double illuminance() const;
 
-  bool isReadingUpdated(const SensorProxy::Reading&) const override;
+  bool isReadingUpdated(const device::SensorReading&) const override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit AmbientLightSensorReading(const AmbientLightSensorReadingInit&);
-  explicit AmbientLightSensorReading(SensorProxy*);
-
- private:
-  AmbientLightSensorReadingInit mAmbientLightSensorReadingInit;
+  explicit AmbientLightSensorReading(const device::SensorReading&);
 };
 
 }  // namepsace blink
 
 #endif  // AmbientLightSensorReading_h