updae source to 2.0.9 source

Edward Rudd

2019-04-09 9cd2e9ec8fc0127393dfce9c0359d500c8c238be

 source/src/video/cocoa/SDL_cocoawindow.h

@@ -148,6 +148,7 @@
extern void Cocoa_DestroyWindow(_THIS, SDL_Window * window);
extern SDL_bool Cocoa_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info);
extern int Cocoa_SetWindowHitTest(SDL_Window *window, SDL_bool enabled);
extern void Cocoa_AcceptDragAndDrop(SDL_Window * window, SDL_bool accept);

#endif /* SDL_cocoawindow_h_ */