AP_Fence: adjust for Location_Class and Location unification

libraries/AC_Fence/AC_Fence.cpp

@@ -359,12 +359,12 @@ uint8_t AC_Fence::check()
 }
 
 // returns true if the destination is within fence (used to reject waypoints outside the fence)
-bool AC_Fence::check_destination_within_fence(const Location_Class& loc)
+bool AC_Fence::check_destination_within_fence(const Location& loc)
 {
     // Altitude fence check
     if ((get_enabled_fences() & AC_FENCE_TYPE_ALT_MAX)) {
         int32_t alt_above_home_cm;
-        if (loc.get_alt_cm(Location_Class::ALT_FRAME_ABOVE_HOME, alt_above_home_cm)) {
+        if (loc.get_alt_cm(Location::ALT_FRAME_ABOVE_HOME, alt_above_home_cm)) {
             if ((alt_above_home_cm * 0.01f) > _alt_max) {
                 return false;
             }

libraries/AC_Fence/AC_Fence.h

@@ -59,7 +59,7 @@ public:
     uint8_t check();
 
     // returns true if the destination is within fence (used to reject waypoints outside the fence)
-    bool check_destination_within_fence(const Location_Class& loc);
+    bool check_destination_within_fence(const Location& loc);
 
     /// get_breaches - returns bit mask of the fence types that have been breached
     uint8_t get_breaches() const { return _breached_fences; }