Enable Oilpan for modules/geolocation by default.

Source/web/GeolocationClientProxy.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef GeolocationClientProxy_h
 #define GeolocationClientProxy_h
 
 #include "modules/geolocation/GeolocationClient.h"
 #include "platform/heap/Handle.h"
 #include "public/web/WebGeolocationController.h"
-#include "wtf/RefPtr.h"
 
 namespace WebCore {
 class GeolocationPosition;
 }
 
 namespace blink {
 class WebGeolocationClient;
 
 class GeolocationClientProxy FINAL : public WebCore::GeolocationClient {
 public:
     GeolocationClientProxy(WebGeolocationClient* client);
     virtual ~GeolocationClientProxy();
     void setController(WebCore::GeolocationController *controller);
     virtual void geolocationDestroyed() OVERRIDE;
     virtual void startUpdating() OVERRIDE;
     virtual void stopUpdating() OVERRIDE;
     virtual void setEnableHighAccuracy(bool) OVERRIDE;
     virtual WebCore::GeolocationPosition* lastPosition() OVERRIDE;
 
     virtual void requestPermission(WebCore::Geolocation*) OVERRIDE;
     virtual void cancelPermissionRequest(WebCore::Geolocation*) OVERRIDE;
 
 private:
     WebGeolocationClient* m_client;
-    RefPtrWillBePersistent<WebCore::GeolocationPosition> m_lastPosition;
+    WebCore::Persistent<WebCore::GeolocationPosition> m_lastPosition;
 };
 
 } // namespace blink
 
 #endif // GeolocationClientProxy_h