Style Change: NULL->nullptr
DOCS_PREVIEW= https://skia.org/?cl=1316233002

Review URL: https://codereview.chromium.org/1316233002
diff --git a/src/animator/SkDrawDash.cpp b/src/animator/SkDrawDash.cpp
index cfef303..d47db41 100644
--- a/src/animator/SkDrawDash.cpp
+++ b/src/animator/SkDrawDash.cpp
@@ -30,6 +30,6 @@
 SkPathEffect* SkDash::getPathEffect() {
     int count = intervals.count();
     if (count == 0)
-        return NULL;
+        return nullptr;
     return SkDashPathEffect::Create(intervals.begin(), count, phase);
 }