Style Change: NULL->nullptr

tools/PictureResultsWriter.h

 /*
  * Copyright 2014 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 SkPictureResultsWriter_DEFINED
@@ skipping 86 matching lines @@
 private:
     SkTArray<PictureResultsWriter*> fWriters;
 };
 
 /**
  * Writes to BenchLogger to mimic original behavior
  */
 class PictureResultsLoggerWriter : public PictureResultsWriter {
 private:
     void logProgress(const char str[]) {
-        if(fLogger != NULL) {
+        if(fLogger != nullptr) {
             fLogger->logProgress(str);
         }
     }
 public:
     PictureResultsLoggerWriter(BenchLogger* log)
           : fLogger(log), fCurrentLine() {}
     void bench(const char name[], int32_t x, int32_t y) override {
         SkString result;
         result.printf("running bench [%i %i] %s ", x, y, name);
         this->logProgress(result.c_str());
@@ skipping 185 matching lines @@
 
     SkString        fConfigString;
     SkString        fBuilderName;
     int             fBuildNumber;
     int             fTimestamp;
     SkString        fGitHash;
     int             fGitNumber;
 };
 
 #endif