Style Change: NULL->nullptr

bench/ResultsWriter.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Classes for writing out bench results in various formats.
  */
 
 #ifndef SkResultsWriter_DEFINED
@@ skipping 61 matching lines @@
                  ...
               },
           ...
 */
 class NanoJSONResultsWriter : public ResultsWriter {
 public:
     explicit NanoJSONResultsWriter(const char filename[])
         : fFilename(filename)
         , fRoot()
         , fResults(fRoot["results"])
-        , fBench(NULL)
-        , fConfig(NULL) {}
+        , fBench(nullptr)
+        , fConfig(nullptr) {}
 
     ~NanoJSONResultsWriter() {
         this->flush();
     }
 
     // Added under "key".
     virtual void key(const char name[], const char value[]) {
         fRoot["key"][name] = value;
     }
     // Inserted directly into the root.
@@ skipping 37 matching lines @@
 private:
     SkString fFilename;
     Json::Value fRoot;
     Json::Value& fResults;
     Json::Value* fBench;
     Json::Value* fConfig;
 };
 
 
 #endif