[C++11 Allowed Features] Declares a type-safe null pointer converting from NULL to nullptr in src/…

cc/debug/picture_record_benchmark.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/debug/picture_record_benchmark.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/values.h"
@@ skipping 13 matching lines @@
 
 }  // namespace
 
 PictureRecordBenchmark::PictureRecordBenchmark(
     scoped_ptr<base::Value> value,
     const MicroBenchmark::DoneCallback& callback)
     : MicroBenchmark(callback) {
   if (!value)
     return;
 
-  base::ListValue* list = NULL;
+  base::ListValue* list = nullptr;
   value->GetAsList(&list);
   if (!list)
     return;
 
   for (base::ListValue::iterator it = list->begin(); it != list->end(); ++it) {
-    base::DictionaryValue* dictionary = NULL;
+    base::DictionaryValue* dictionary = nullptr;
     (*it)->GetAsDictionary(&dictionary);
     if (!dictionary ||
         !dictionary->HasKey("width") ||
         !dictionary->HasKey("height"))
       continue;
 
     int width, height;
     dictionary->GetInteger("width", &width);
     dictionary->GetInteger("height", &height);
 
@@ skipping 66 matching lines @@
         base::TimeDelta duration = end - start;
         TotalTime& total_time = times_[dimensions];
         total_time.first += duration;
         total_time.second++;
       }
     }
   }
 }
 
 }  // namespace cc