Style Change: NULL->nullptr

gm/picture.cpp

Index: gm/picture.cpp
diff --git a/gm/picture.cpp b/gm/picture.cpp
index 175e0a76f27f9e9fdb9b56973c8cdc72f58023e0..1f8ded0bac39115c87e4683efed4b02acff62572 100644
--- a/gm/picture.cpp
+++ b/gm/picture.cpp
@@ -40,7 +40,7 @@ static SkPicture* make_picture() {
 class PictureGM : public skiagm::GM {
 public:
     PictureGM()
-        : fPicture(NULL)
+        : fPicture(nullptr)
     {}
 
 protected:
@@ -65,7 +65,7 @@ protected:
         canvas->drawPicture(fPicture);
         
         matrix.setTranslate(110, 0);
-        canvas->drawPicture(fPicture, &matrix, NULL);
+        canvas->drawPicture(fPicture, &matrix, nullptr);
         
         matrix.postTranslate(110, 0);
         canvas->drawPicture(fPicture, &matrix, &paint);