diff --git a/samplecode/SampleThinAA.cpp b/samplecode/SampleThinAA.cpp
index ae301e9..92aa202 100644
--- a/samplecode/SampleThinAA.cpp
+++ b/samplecode/SampleThinAA.cpp
@@ -13,7 +13,6 @@
 #include "include/core/SkImage.h"
 #include "include/core/SkPath.h"
 #include "include/core/SkSurface.h"
-#include "tools/timer/AnimTimer.h"
 
 namespace skiagm {
 
@@ -316,8 +315,8 @@
         this->drawShapes(canvas, "SSx64", 4, fSS16);
     }
 
-    bool onAnimate(const AnimTimer& timer) override {
-        SkScalar t = timer.secs();
+    bool onAnimate(double nanos) override {
+        SkScalar t = 1e-9 * nanos;
         SkScalar dt = fLastFrameTime < 0.f ? 0.f : t - fLastFrameTime;
         fLastFrameTime = t;