Style Change: NULL->nullptr

tests/GrGLSLPrettyPrintTest.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 "SkTypes.h"
+
 #if SK_SUPPORT_GPU
 #include "Test.h"
 #include "gl/GrGLSLPrettyPrint.h"
 
 #define ASSERT(x) REPORTER_ASSERT(r, x)
 
 const SkString input1("#this is not a realshader\nvec4 some stuff;outside of a function;"
                      "int i(int b, int c) { { some stuff;} fake block; //comments\n return i;}"
                      "void main()");
 const SkString input2("{nowin a function;{indenting;{abit more;dreadedfor((;;)(;)((;;);)){"
@@ skipping 92 matching lines @@
     lengths.reset();
     testStr.push_back(neg1.c_str());
     lengths.push_back((int)neg1.size());
     testStr.push_back(neg2.c_str());
     lengths.push_back((int)neg2.size());
     testStr.push_back(neg3.c_str());
     lengths.push_back((int)neg3.size());
 
     // Just test we don't crash with garbage input
     ASSERT(GrGLSLPrettyPrint::PrettyPrintGLSL(testStr.begin(), lengths.begin(), 1,
-                                              true).c_str() != NULL);
+                                              true).c_str() != nullptr);
 }
 
 #endif