Draw n-patches using OpenGL.

Currently only tested with title bars and buttons.

Change-Id: I8263a9281898dc0e943b1b8412827fe55639b9d6
diff --git a/libs/hwui/Layer.h b/libs/hwui/Layer.h
index 586a05e..d4db782 100644
--- a/libs/hwui/Layer.h
+++ b/libs/hwui/Layer.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_UI_LAYER_H
 #define ANDROID_UI_LAYER_H
 
+#include <sys/types.h>
+
 #include <GLES2/gl2.h>
 
 #include <SkXfermode.h>
@@ -54,7 +56,7 @@
     bool operator==(const LayerSize& rhs) const {
         return width == rhs.width && height == rhs.height;
     }
-};
+}; // struct LayerSize
 
 /**
  * A layer has dimensions and is backed by an OpenGL texture.