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

Review URL: https://codereview.chromium.org/1316233002
diff --git a/bench/RepeatTileBench.cpp b/bench/RepeatTileBench.cpp
index afbc5b2..4844f18 100644
--- a/bench/RepeatTileBench.cpp
+++ b/bench/RepeatTileBench.cpp
@@ -66,7 +66,7 @@
     SkColorTable* ctable = new SkColorTable(storage, 216);
     dst->allocPixels(SkImageInfo::Make(src.width(), src.height(),
                                        kIndex_8_SkColorType, kOpaque_SkAlphaType),
-                     NULL, ctable);
+                     nullptr, ctable);
     ctable->unref();
 
     SkAutoLockPixels alps(src);