(svn r11719) -Codechange: split sound.h in a header with types and one with functions.

src/newgrf_sound.cpp

@@ -5,12 +5,12 @@
 #include "stdafx.h"
 #include "openttd.h"
 #include "oldpool.h"
-#include "sound.h"
 #include "engine.h"
 #include "newgrf_callbacks.h"
 #include "newgrf_engine.h"
 #include "newgrf_sound.h"
 #include "vehicle_base.h"
+#include "sound_func.h"
 
 static uint _sound_count = 0;
 STATIC_OLD_POOL(SoundInternal, FileEntry, 3, 1000, NULL, NULL)