Add Chinese fling sample

Change-Id: Id27877c4d816ec83460f50a3a0d9cc0299ea6849
Reviewed-on: https://skia-review.googlesource.com/34780
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/gn/samples.gni b/gn/samples.gni
index edb2fe8..b61ec34 100644
--- a/gn/samples.gni
+++ b/gn/samples.gni
@@ -29,6 +29,7 @@
   "$_samplecode/SampleCCPRGeometry.cpp",
   "$_samplecode/SampleCamera.cpp",
   "$_samplecode/SampleChart.cpp",
+  "$_samplecode/SampleChineseFling.cpp",
   "$_samplecode/SampleCircle.cpp",
   "$_samplecode/SampleClip.cpp",
   "$_samplecode/SampleClipDrawMatch.cpp",