Restructure things to fit upcoming diff

java/csharp/Facebook.CSSLayout/FloatUtil.cs

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2014, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+using System;
+
+namespace Facebook.CSSLayout
+{
+    static class FloatUtil
+    {
+        const float Epsilon = .00001f;
+
+        public static bool floatsEqual(float f1, float f2)
+        {
+            if (float.IsNaN(f1) || float.IsNaN(f2))
+            {
+                return float.IsNaN(f1) && float.IsNaN(f2);
+            }
+            return Math.Abs(f2 - f1) < Epsilon;
+        }
+    }
+}