Plane: move sending of WIND message to GCS namespace

ArduPlane/GCS_Mavlink.cpp

@@ -304,9 +304,9 @@ void GCS_MAVLINK_Plane::send_simstate() const
 #endif
 }
 
-void Plane::send_wind(mavlink_channel_t chan)
+void GCS_MAVLINK_Plane::send_wind() const
 {
-    Vector3f wind = ahrs.wind_estimate();
+    const Vector3f wind = AP::ahrs().wind_estimate();
     mavlink_msg_wind_send(
         chan,
         degrees(atan2f(-wind.y, -wind.x)), // use negative, to give
@@ -430,7 +430,7 @@ bool GCS_MAVLINK_Plane::try_send_message(enum ap_message id)
 
     case MSG_WIND:
         CHECK_PAYLOAD_SIZE(WIND);
-        plane.send_wind(chan);
+        send_wind();
         break;
 
     case MSG_ADSB_VEHICLE:

ArduPlane/GCS_Mavlink.h

@@ -31,6 +31,7 @@ protected:
     void send_aoa_ssa();
     void send_attitude() const override;
     void send_simstate() const override;
+    void send_wind() const;
 
     bool persist_streamrates() const override { return true; }
 

ArduPlane/Plane.h

@@ -763,7 +763,6 @@ private:
     void update_load_factor(void);
     void send_fence_status(mavlink_channel_t chan);
     void send_servo_out(mavlink_channel_t chan);
-    void send_wind(mavlink_channel_t chan);
 
     void Log_Write_Fast(void);
     void Log_Write_Attitude(void);