APMFirmwarePlugin: make _guidedModeTakeoff virtual

src/FirmwarePlugin/APM/APMFirmwarePlugin.h

@@ -106,7 +106,7 @@ private:
     void _handleIncomingHeartbeat(Vehicle* vehicle, mavlink_message_t* message);
     void _handleOutgoingParamSetThreadSafe(Vehicle* vehicle, LinkInterface* outgoingLink, mavlink_message_t* message);
     void _soloVideoHandshake(void);
-    bool _guidedModeTakeoff(Vehicle* vehicle, double altitudeRel);
+    virtual bool _guidedModeTakeoff(Vehicle* vehicle, double altitudeRel);
     void _handleRCChannels(Vehicle* vehicle, mavlink_message_t* message);
     void _handleRCChannelsRaw(Vehicle* vehicle, mavlink_message_t* message);
     QString _getLatestVersionFileUrl(Vehicle* vehicle) override;