Plumb drawArc to SkDevice

tools/android/SkAndroidSDKCanvas.h

Index: tools/android/SkAndroidSDKCanvas.h
diff --git a/tools/android/SkAndroidSDKCanvas.h b/tools/android/SkAndroidSDKCanvas.h
index b7be797b84f74ea628ef8c0372211a1cac57e812..766860be2d54ce6294aa948efce7bac6e2c9276a 100644
--- a/tools/android/SkAndroidSDKCanvas.h
+++ b/tools/android/SkAndroidSDKCanvas.h
@@ -37,6 +37,8 @@ protected:
     void onDrawPoints(PointMode pMode, size_t count, const SkPoint pts[],
                       const SkPaint& paint) override;
     void onDrawOval(const SkRect& r, const SkPaint& paint) override;
+    void onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle, bool useCenter,
+                   const SkPaint& paint) override;
     void onDrawRect(const SkRect& r, const SkPaint& paint) override;
     void onDrawRRect(const SkRRect& r, const SkPaint& paint) override;
     void onDrawPath(const SkPath& path, const SkPaint& paint) override;