C++11 declares a type safe null pointer

content/common/android/gin_java_bridge_value.cc

 // Copyright 2014 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 "content/common/android/gin_java_bridge_value.h"
 
 namespace content {
 
 namespace {
 
@@ skipping 59 matching lines @@
           header->type >= TYPE_FIRST_VALUE && header->type < TYPE_LAST_VALUE);
 }
 
 // static
 scoped_ptr<const GinJavaBridgeValue> GinJavaBridgeValue::FromValue(
     const base::Value* value) {
   return scoped_ptr<const GinJavaBridgeValue>(
       value->IsType(base::Value::TYPE_BINARY)
           ? new GinJavaBridgeValue(
                 reinterpret_cast<const base::BinaryValue*>(value))
-          : NULL);
+          : nullptr);
 }
 
 GinJavaBridgeValue::Type GinJavaBridgeValue::GetType() const {
   const Header* header = pickle_.headerT<Header>();
   DCHECK(header->type >= TYPE_FIRST_VALUE && header->type < TYPE_LAST_VALUE);
   return static_cast<Type>(header->type);
 }
 
 bool GinJavaBridgeValue::IsType(Type type) const {
   return GetType() == type;
@@ skipping 28 matching lines @@
     : pickle_(value->GetBuffer(), value->GetSize()) {
   DCHECK(ContainsGinJavaBridgeValue(value));
 }
 
 base::BinaryValue* GinJavaBridgeValue::SerializeToBinaryValue() {
   return base::BinaryValue::CreateWithCopiedBuffer(
       reinterpret_cast<const char*>(pickle_.data()), pickle_.size());
 }
 
 }  // namespace content