diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 1d77154..058680b 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -125,6 +125,8 @@
     static EGLBoolean makeCurrent(EGLDisplay dpy,
             const sp<const DisplayDevice>& hw, EGLContext ctx);
 
+    static void setViewportAndProjection(const sp<const DisplayDevice>& hw);
+
     /* ------------------------------------------------------------------------
      * blank / unblank management
      */