Style Change: NULL->nullptr

gm/picture.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkPaint.h"
 #include "SkPictureRecorder.h"
@@ skipping 22 matching lines @@
     canvas->drawRect(SkRect::MakeXYWH(25, 25, 50, 50), paint);
 
     return rec.endRecording();
 }
 
 // Exercise the optional arguments to drawPicture
 //
 class PictureGM : public skiagm::GM {
 public:
     PictureGM()
-        : fPicture(NULL)
+        : fPicture(nullptr)
     {}
 
 protected:
     void onOnceBeforeDraw() override {
          fPicture.reset(make_picture());
     }
 
     SkString onShortName() override {
         return SkString("pictures");
     }
 
     SkISize onISize() override {
         return SkISize::Make(450, 120);
     }
 
     void onDraw(SkCanvas* canvas) override {
         canvas->translate(10, 10);
 
         SkMatrix matrix;
         SkPaint paint;
 
         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);
 
         paint.setAlpha(0x80);
         matrix.postTranslate(110, 0);
         canvas->drawPicture(fPicture, &matrix, &paint);
     }
 
 private:
     SkAutoTUnref<SkPicture> fPicture;
 
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM(return new PictureGM;)