Fixed compiler error

Libraries/MonoGame.Framework/Src/MonoGame.Framework/Graphics/SpriteBatch.cs

@@ -7,10 +7,23 @@ using System.Text;
 
 namespace Microsoft.Xna.Framework.Graphics
 {
+    public interface ISpriteBatch
+    {
+        public void Draw(Texture2D texture,
+                Vector2 position,
+                Rectangle? sourceRectangle,
+                Color color,
+                float rotation,
+                Vector2 origin,
+                Vector2 scale,
+                SpriteEffects effects,
+                float layerDepth);
+    }
+
     /// <summary>
     /// Helper class for drawing text strings and sprites in one or more optimized batches.
     /// </summary>
-	public class SpriteBatch : GraphicsResource
+	public class SpriteBatch : GraphicsResource, ISpriteBatch
 	{
         #region Private Fields
         readonly SpriteBatcher _batcher;