diff --git a/samplecode/SampleApp.h b/samplecode/SampleApp.h
index ba404da..a177b73 100644
--- a/samplecode/SampleApp.h
+++ b/samplecode/SampleApp.h
@@ -50,7 +50,7 @@
      */
     class DeviceManager : public SkRefCnt {
     public:
-        virtual void setUpBackend(SampleWindow* win) = 0;
+        virtual void setUpBackend(SampleWindow* win, int msaaSampleCount) = 0;
 
         virtual void tearDownBackend(SampleWindow* win) = 0;
 
@@ -170,6 +170,8 @@
     SkOSMenu::TriState fHintingState;
     unsigned   fFlipAxis;
 
+    int fMSAASampleCount;
+
     int fScrollTestX, fScrollTestY;
     SkScalar fZoomCenterX, fZoomCenterY;