Pass through the geofencing API calls to the content layer.

Source/modules/geolocation/CircularRegion.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 CircularRegion_h
 #define CircularRegion_h
 
 #include "modules/geolocation/GeofencingRegion.h"
 
 namespace WebCore {
@@ skipping 13 matching lines @@
 class CircularRegion FINAL : public GeofencingRegion {
     WTF_MAKE_NONCOPYABLE(CircularRegion);
 public:
     static CircularRegion* create(const Dictionary& init);
     virtual ~CircularRegion() { }
 
     double latitude() const { return m_latitude; }
     double longitude() const { return m_longitude; }
     double radius() const { return m_radius; }
 
+    virtual bool isCircularRegion() const OVERRIDE { return true; }
+
     virtual void trace(Visitor* visitor) OVERRIDE { GeofencingRegion::trace(visitor); }
 
 private:
     explicit CircularRegion(const CircularRegionInit&);
 
     double m_latitude;
     double m_longitude;
     double m_radius;
 };
 
 } // namespace WebCore
 
 #endif