Fix all private_in_public errors

Author: nox

src/color_space.rs

@@ -11,7 +11,7 @@ use core_foundation::base::{CFRelease, CFRetain, CFTypeID, CFTypeRef, TCFType};
 use std::mem;
 
 #[repr(C)]
-struct __CGColorSpace;
+pub struct __CGColorSpace;
 
 pub type CGColorSpaceRef = *const __CGColorSpace;
 

src/context.rs

@@ -16,7 +16,7 @@ use std::ptr;
 use std::slice;
 
 #[repr(C)]
-struct __CGContext;
+pub struct __CGContext;
 
 pub type CGContextRef = *const __CGContext;
 

src/data_provider.rs

@@ -26,7 +26,7 @@ pub type CGDataProviderReleaseDataCallback = *const u8;
 pub type CGDataProviderGetBytesAtPositionCallback = *const u8;
 
 #[repr(C)]
-struct __CGDataProvider;
+pub struct __CGDataProvider;
 
 pub type CGDataProviderRef = *const __CGDataProvider;
 

src/font.rs

@@ -20,7 +20,7 @@ use std::ptr;
 pub type CGGlyph = libc::c_ushort;
 
 #[repr(C)]
-struct __CGFont;
+pub struct __CGFont;
 
 pub type CGFontRef = *const __CGFont;
 

src/private.rs

@@ -91,7 +91,7 @@ mod ffi {
     use libc::{c_int, c_uint};
 
     // This is an enum so that we can't easily make instances of this opaque type.
-    enum CGSRegionObject {}
+    pub enum CGSRegionObject {}
 
     pub type CGError = OSStatus;
     pub type CGSRegionRef = *mut CGSRegionObject;