Style Change: NULL->nullptr

src/utils/SkTextBox.cpp

Index: src/utils/SkTextBox.cpp
diff --git a/src/utils/SkTextBox.cpp b/src/utils/SkTextBox.cpp
index af05cadfc6e8a709d2dff8022e459527ee410e5b..ba6ef53debc74afe3e26318cf99edfc7682191ab 100644
--- a/src/utils/SkTextBox.cpp
+++ b/src/utils/SkTextBox.cpp
@@ -15,7 +15,7 @@ static inline int is_ws(int c)
 
 static size_t linebreak(const char text[], const char stop[],
                         const SkPaint& paint, SkScalar margin,
-                        size_t* trailing = NULL)
+                        size_t* trailing = nullptr)
 {
     size_t lengthBreak = paint.breakText(text, stop - text, margin);