AP_Logger: remove requirement to know storage type of fence item in headers

libraries/AP_Logger/AP_Logger.cpp

@@ -15,6 +15,10 @@
 #include <AP_Rally/AP_Rally.h>
 #include <AP_Vehicle/AP_Vehicle_Type.h>
 
+#if HAL_LOGGER_FENCE_ENABLED
+    #include <AC_Fence/AC_Fence.h>
+#endif
+
 AP_Logger *AP_Logger::_singleton;
 
 extern const AP_HAL::HAL& hal;

libraries/AP_Logger/AP_Logger.h

@@ -12,10 +12,6 @@
 #include <AP_Logger/LogStructure.h>
 #include <AP_Vehicle/ModeReason.h>
 
-#if HAL_LOGGER_FENCE_ENABLED
-    #include <AC_Fence/AC_Fence.h>
-#endif
-
 #include <stdint.h>
 
 #include "LoggerMessageWriter.h"

libraries/AP_Logger/AP_Logger_Backend.cpp

@@ -8,6 +8,10 @@
 #include <AP_Rally/AP_Rally.h>
 #include <AP_Vehicle/AP_Vehicle_Type.h>
 
+#if HAL_LOGGER_FENCE_ENABLED
+    #include <AC_Fence/AC_Fence.h>
+#endif
+
 extern const AP_HAL::HAL& hal;
 
 AP_Logger_Backend::AP_Logger_Backend(AP_Logger &front,

libraries/AP_Logger/AP_Logger_Backend.h

@@ -124,7 +124,7 @@ public:
                           const class RallyLocation &rally_point);
     bool Write_Rally();
 #if HAL_LOGGER_FENCE_ENABLED
-    bool Write_FencePoint(uint8_t total, uint8_t sequence, const AC_PolyFenceItem &fence_point);
+    bool Write_FencePoint(uint8_t total, uint8_t sequence, const class AC_PolyFenceItem &fence_point);
     bool Write_Fence();
 #endif
     bool Write_Format(const struct LogStructure *structure);

libraries/AP_Logger/LoggerMessageWriter.cpp

@@ -3,6 +3,10 @@
 #include <AP_Scheduler/AP_Scheduler.h>
 #include <AP_Vehicle/AP_Vehicle_Type.h>
 
+#if HAL_LOGGER_FENCE_ENABLED
+    #include <AC_Fence/AC_Fence.h>
+#endif
+
 #define FORCE_VERSION_H_INCLUDE
 #include "ap_version.h"
 #undef FORCE_VERSION_H_INCLUDE