Style Change: NULL->nullptr

tools/picture_utils.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef picture_utils_DEFINED
 #define picture_utils_DEFINED
 
@@ skipping 21 matching lines @@
     //
     // Specifically, it configures the bitmap, allocates pixels and then
     // erases the pixels to transparent black.
     void setup_bitmap(SkBitmap* bitmap, int width, int height);
 
     /**
      * Write a bitmap file to disk.
      *
      * @param bm the bitmap to record
      * @param dirPath directory within which to write the image file
-     * @param subdirOrNull subdirectory within dirPath, or NULL to just write into dirPath
+     * @param subdirOrNull subdirectory within dirPath, or nullptr to just write into dirPath
      * @param baseName last part of the filename
      *
      * @return true if written out successfully
      */
     bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
                               const char *subdirOrNull, const SkString& baseName);
 
 } // namespace sk_tools
 
 #endif  // picture_utils_DEFINED