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

Review URL: https://codereview.chromium.org/1316233002
diff --git a/tools/DumpRecord.cpp b/tools/DumpRecord.cpp
index 3c34231..667c9ef 100644
--- a/tools/DumpRecord.cpp
+++ b/tools/DumpRecord.cpp
@@ -21,7 +21,7 @@
         : fDigits(0)
         , fIndent(0)
         , fIndex(0)
-        , fDraw(canvas, NULL, NULL, 0, NULL)
+        , fDraw(canvas, nullptr, nullptr, 0, nullptr)
         , fTimeWithCommand(timeWithCommand) {
         while (count > 0) {
             count /= 10;