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

Review URL: https://codereview.chromium.org/1316233002
diff --git a/src/core/SkBlitRow_D32.cpp b/src/core/SkBlitRow_D32.cpp
index 559ee18..0f8cbe8 100644
--- a/src/core/SkBlitRow_D32.cpp
+++ b/src/core/SkBlitRow_D32.cpp
@@ -124,7 +124,7 @@
     flags &= kFlags32_Mask;
 
     SkBlitRow::Proc32 proc = PlatformProcs32(flags);
-    if (NULL == proc) {
+    if (nullptr == proc) {
         proc = gDefault_Procs32[flags];
     }
     SkASSERT(proc);