Style Change: NULL->nullptr

tools/skhello.cpp

Index: tools/skhello.cpp
diff --git a/tools/skhello.cpp b/tools/skhello.cpp
index b46ba084abb1fb26564873fe18057063219bb422..5614a56f5d5d5c55684e51d093250c3e17054c3b 100644
--- a/tools/skhello.cpp
+++ b/tools/skhello.cpp
@@ -39,7 +39,7 @@ static bool do_surface(int w, int h, const char path[], const char text[],
 
     SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
     SkAutoDataUnref data(image->encode());
-    if (NULL == data.get()) {
+    if (nullptr == data.get()) {
         return false;
     }
     SkFILEWStream stream(path);
@@ -52,7 +52,7 @@ static bool do_document(int w, int h, const char path[], const char text[],
     if (doc.get()) {
         SkScalar width = SkIntToScalar(w);
         SkScalar height = SkIntToScalar(h);
-        doDraw(doc->beginPage(width, height, NULL), paint, text);
+        doDraw(doc->beginPage(width, height, nullptr), paint, text);
         return true;
     }
     return false;