[Sensors] Implement Sensor.onactivate

third_party/WebKit/Source/modules/sensor/Sensor.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 Sensor_h
 #define Sensor_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ActiveDOMObject.h"
@@ skipping 36 matching lines @@
     return ContextLifecycleObserver::getExecutionContext();
   }
 
   // Getters
   String state() const;
   // TODO(riju): crbug.com/614797 .
   SensorReading* reading() const;
 
   DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
   DEFINE_ATTRIBUTE_EVENT_LISTENER(change);
-  DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
+  DEFINE_ATTRIBUTE_EVENT_LISTENER(activate);
 
   // ActiveScriptWrappable overrides.
   bool hasPendingActivity() const override;
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   Sensor(ScriptState*,
          const SensorOptions&,
          ExceptionState&,
@@ skipping 33 matching lines @@
   void pollForData();
 
   void updateState(SensorState newState);
   void reportError(ExceptionCode = UnknownError,
                    const String& sanitizedMessage = String(),
                    const String& unsanitizedMessage = String());
 
   void updatePollingStatus();
 
   void notifySensorReadingChanged();
-  void notifyStateChanged();
+  void notifyOnActivate();
   void notifyError(DOMException* error);
 
  private:
   SensorOptions m_sensorOptions;
   device::mojom::blink::SensorType m_type;
   SensorState m_state;
   Member<SensorProxy> m_sensorProxy;
   std::unique_ptr<SensorPollingStrategy> m_polling;
   device::SensorReading m_storedData;
   SensorConfigurationPtr m_configuration;
 };
 
 }  // namespace blink
 
 #endif  // Sensor_h