Implement SkiaCanvasProxy::onDrawArc

Test: UiRendering CTS SweepTests with picture mode turned on and
drawBitmapMesh turned off (it's not implemented yet).

This should fix BUG:34306056, and part of BUG:34871089 (the drawArc part
of SweepTests in picture mode).

BUG:34306056
BUG:34871089

Change-Id: I8fdcf72ddb4a0bfccedfd7e4e374a1ec5df17d75
(cherry picked from commit 538b6359cf81b14322141089161f20291295d6d3)
diff --git a/libs/hwui/SkiaCanvasProxy.cpp b/libs/hwui/SkiaCanvasProxy.cpp
index f32612d..20ca80b 100644
--- a/libs/hwui/SkiaCanvasProxy.cpp
+++ b/libs/hwui/SkiaCanvasProxy.cpp
@@ -103,6 +103,12 @@
     }
 }
 
+void SkiaCanvasProxy::onDrawArc(const SkRect& rect, SkScalar startAngle, SkScalar sweepAngle,
+                                bool useCenter, const SkPaint& paint) {
+    mCanvas->drawArc(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom,
+                     startAngle, sweepAngle, useCenter, paint);
+}
+
 void SkiaCanvasProxy::onDrawPath(const SkPath& path, const SkPaint& paint) {
     mCanvas->drawPath(path, paint);
 }