Update for bug 4883 - Add approximation for display DPI on iOS

Aaron Barany

I realized I made a minor mistake in my patch: I changed the constructor prototype for SDL_DisplayData, but didn't update the declaration in the .h file. The compiler and linker don't complain, but it would probably be best to fix in case a later change runs into a problem from the mismatch. I have attached a patch to fix this.

src/video/uikit/SDL_uikitmodes.h

@@ -27,7 +27,7 @@
 
 @interface SDL_DisplayData : NSObject
 
-- (instancetype)init;
+- (instancetype)initWithScreen:(UIScreen*)screen;
 
 @property (nonatomic, strong) UIScreen *uiscreen;
 @property (nonatomic) float screenDPI;