Fixes for integration into Unity

CSSLayout/CSSLayout.cpp

@@ -38,7 +38,7 @@ __forceinline const float fminf(const float a, const float b) {
 // END_UNITY
 #endif
 // BEGIN_UNITY @patrickf 12-02-2016 roundf is C++11
-#if (defined(_MSC_VER) && _MSC_VER < 1700)
+#if (defined(_MSC_VER) && _MSC_VER < 1700) || defined(_N3DS)
 __forceinline float roundf(float a) {
   return floor(a + .5f);
 }

csharp/Facebook.CSSLayout/CSSExperimentalFeature.cs

@@ -12,7 +12,7 @@
 namespace UnityEngine.CSSLayout
 // END_UNITY
 {
-    public enum CSSExperimentalFeature
+    internal enum CSSExperimentalFeature
     {
         Rounding,
         WebFlexBasis,

csharp/Facebook.CSSLayout/CSSLogLevel.cs

@@ -12,7 +12,7 @@
 namespace UnityEngine.CSSLayout
 // END_UNITY
 {
-    public enum CSSLogLevel
+    internal enum CSSLogLevel
     {
         Error,
         Warn,

csharp/Facebook.CSSLayout/Native.bindings.cs

@@ -225,10 +225,10 @@ namespace UnityEngine.CSSLayout
         [NativeMethod(IsFreeFunction = true)]
         public static extern float CSSNodeStyleGetMaxHeight(IntPtr node);
 
-        [DllImport(DllName)]
+        [NativeMethod(IsFreeFunction = true)]
         public static extern void CSSNodeStyleSetAspectRatio(IntPtr node, float aspectRatio);
 
-        [DllImport(DllName)]
+        [NativeMethod(IsFreeFunction = true)]
         public static extern float CSSNodeStyleGetAspectRatio(IntPtr node);
 
         #endregion

csharp/Facebook.CSSLayout/Spacing.cs

@@ -12,7 +12,7 @@
 namespace UnityEngine.CSSLayout
 // END_UNITY
 {
-    public class Spacing
+    internal class Spacing
     {
         public float? Top;
         public float? Bottom;