Add 'K' to SampleApp to trigger animated perspective rendering

Review URL: http://codereview.appspot.com/4967061/



git-svn-id: http://skia.googlecode.com/svn/trunk@2244 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleApp.h b/samplecode/SampleApp.h
index 729b7b1..1d7e66b 100644
--- a/samplecode/SampleApp.h
+++ b/samplecode/SampleApp.h
@@ -141,6 +141,8 @@
     bool fRepeatDrawing;
     bool fAnimating;
     bool fRotate;
+    bool fPerspAnim;
+    SkScalar fPerspAnimTime;
     bool fScale;
     bool fRequestGrabImage;
     bool fMeasureFPS;