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

Review URL: https://codereview.chromium.org/1316233002
diff --git a/tools/sk_tool_utils_font.cpp b/tools/sk_tool_utils_font.cpp
index 6d6fda9..af52b37 100644
--- a/tools/sk_tool_utils_font.cpp
+++ b/tools/sk_tool_utils_font.cpp
@@ -30,7 +30,7 @@
 SK_DECLARE_STATIC_MUTEX(gTestFontMutex);
 
 SkTypeface* create_font(const char* name, SkTypeface::Style style) {
-    SkTestFontData* fontData = NULL;
+    SkTestFontData* fontData = nullptr;
     const SubFont* sub;
     if (name) {
         for (int index = 0; index < gSubFontsCount; ++index) {