Delete geofencing implementation.

third_party/WebKit/Source/modules/geofencing/Geofencing.h

-// Copyright 2014 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 Geofencing_h
-#define Geofencing_h
-
-#include "bindings/core/v8/ScriptWrappable.h"
-#include "platform/heap/Handle.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-class GeofencingRegion;
-class ScriptPromise;
-class ScriptState;
-class ServiceWorkerRegistration;
-
-class Geofencing final : public GarbageCollected<Geofencing>, public ScriptWrappable {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    static Geofencing* create(ServiceWorkerRegistration* registration)
-    {
-        return new Geofencing(registration);
-    }
-
-    ScriptPromise registerRegion(ScriptState*, GeofencingRegion*);
-    ScriptPromise unregisterRegion(ScriptState*, const String& regionId);
-    ScriptPromise getRegisteredRegions(ScriptState*) const;
-
-    DECLARE_VIRTUAL_TRACE();
-
-private:
-    explicit Geofencing(ServiceWorkerRegistration*);
-
-    Member<ServiceWorkerRegistration> m_registration;
-};
-
-} // namespace blink
-
-#endif // Geofencing_h