Use "Dictionary" for PositionOptions instead of Custom binding

Source/modules/geolocation/Geolocation.h

Index: Source/modules/geolocation/Geolocation.h
diff --git a/Source/modules/geolocation/Geolocation.h b/Source/modules/geolocation/Geolocation.h
index a1779fbb383f8904c1a9df63a07d85d71a3673f4..5cdbbf1a3bd6411309bba7c920d806d262473c5c 100644
--- a/Source/modules/geolocation/Geolocation.h
+++ b/Source/modules/geolocation/Geolocation.h
@@ -39,6 +39,7 @@
 
 namespace WebCore {
 
+class Dictionary;
 class Document;
 class LocalFrame;
 class GeolocationController;
@@ -61,11 +62,11 @@ public:
 
     // Creates a oneshot and attempts to obtain a position that meets the
     // constraints of the options.
-    void getCurrentPosition(PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, PositionOptions*);
+    void getCurrentPosition(PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, const Dictionary&);
 
     // Creates a watcher that will be notified whenever a new position is
     // available that meets the constraints of the options.
-    int watchPosition(PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, PositionOptions*);
+    int watchPosition(PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, const Dictionary&);
 
     // Removes all references to the watcher, it will not be updated again.
     void clearWatch(int watchID);