Style Change: NULL->nullptr

tools/lua/lua_app.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLua.h"
 #include "SkGraphics.h"
 #include "SkStream.h"
@@ skipping 15 matching lines @@
     }
     return data;
 }
 
 int tool_main(int argc, char** argv);
 int tool_main(int argc, char** argv) {
     SkAutoGraphics ag;
     SkLua L;
 
     for (int i = 1; i < argc; ++i) {
-        SkData* data = NULL;
+        SkData* data = nullptr;
         const void* ptr;
         size_t len;
 
         if (!strcmp(argv[i], "--lua") && i < argc-1) {
             ptr = argv[i + 1];
             len = strlen(argv[i + 1]);
             i += 1;
         } else {
             data = read_into_data(argv[i]);
             ptr = data->data();
             len = data->size();
         }
         if (!L.runCode(ptr, len)) {
             SkDebugf("failed to load %s\n", argv[i]);
             exit(-1);
         }
         SkSafeUnref(data);
     }
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif