playlist: create the fullscreen variable

At least the ncurses and MacOS interface already depends on this, and
the earlier did not create it... This is needed for a later fix to
LibVLC.

modules/gui/macosx/intf.m

@@ -516,7 +516,6 @@ static VLCMain *_o_sharedMainInstance = nil;
 
     p_playlist = pl_Get( p_intf );
 
-    var_Create( p_playlist, "fullscreen", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
     val.b_bool = false;
 
     var_AddCallback( p_playlist, "fullscreen", FullscreenChanged, self);

src/playlist/engine.c

@@ -313,6 +313,9 @@ static void VariablesInit( playlist_t *p_playlist )
 
     /* */
     var_Create( p_playlist, "album-art", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+
+    /* Variables to preserve video output parameters */
+    var_Create( p_playlist, "fullscreen", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 }
 
 playlist_item_t * playlist_CurrentPlayingItem( playlist_t * p_playlist )