Replace Dictionary with PositionOptions in geolocation/.

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 eb8e4c6e7244f87a6c290573d41bca5c5ff2ae96..a94101787c5e5d8c9b9e4c527b1f52041aab7877 100644
--- a/Source/modules/geolocation/Geolocation.h
+++ b/Source/modules/geolocation/Geolocation.h
@@ -63,11 +63,11 @@ public:
 
     // Creates a oneshot and attempts to obtain a position that meets the
     // constraints of the options.
-    void getCurrentPosition(PositionCallback*, PositionErrorCallback*, const Dictionary&);
+    void getCurrentPosition(PositionCallback*, PositionErrorCallback*, const PositionOptions&);
 
     // Creates a watcher that will be notified whenever a new position is
     // available that meets the constraints of the options.
-    int watchPosition(PositionCallback*, PositionErrorCallback*, const Dictionary&);
+    int watchPosition(PositionCallback*, PositionErrorCallback*, const PositionOptions&);
 
     // Removes all references to the watcher, it will not be updated again.
     void clearWatch(int watchID);
@@ -156,7 +156,7 @@ private:
     // fatal error if permission is denied or no position can be obtained.
     void startRequest(GeoNotifier*);
 
-    bool haveSuitableCachedPosition(PositionOptions*);
+    bool haveSuitableCachedPosition(const PositionOptions&);
 
     // Runs the success callbacks for the set of notifiers awaiting a cached
     // position, the set is then cleared. The oneshots are removed everywhere.