ArduCopter: provide and use base class set_home_from_current_location

ArduCopter/commands.cpp

@@ -37,18 +37,16 @@ void Copter::set_home_to_current_location_inflight() {
 }
 
 // set_home_to_current_location - set home to current GPS location
-bool Copter::set_home_to_current_location(bool lock) {
-    // get current location from EKF
-    Location temp_loc;
-    if (ahrs.get_location(temp_loc)) {
-        if (!set_home(temp_loc, lock)) {
-            return false;
-        }
-        // we have successfully set AHRS home, set it for SmartRTL
+bool Copter::set_home_to_current_location(bool lock)
+{
+    if (!AP_Vehicle::set_home_to_current_location(lock)) {
+        return false;
+    }
+
+    // we have successfully set AHRS home, set it for SmartRTL
 #if MODE_SMARTRTL_ENABLED == ENABLED
-        g2.smart_rtl.set_home(true);
+    g2.smart_rtl.set_home(true);
 #endif
-        return true;
-    }
-    return false;
+
+    return true;
 }