Run clang-modernize -use-nullptr over src/extensions/.

extensions/common/permissions/settings_override_permission.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 "extensions/common/permissions/settings_override_permission.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "grit/extensions_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ skipping 32 matching lines @@
   PermissionMessages result;
   result.push_back(
       PermissionMessage(info()->message_id(),
                         l10n_util::GetStringFUTF16(
                             string_id, base::UTF8ToUTF16(setting_value_))));
   return result;
 }
 
 bool SettingsOverrideAPIPermission::Check(
     const APIPermission::CheckParam* param) const {
-  return (param == NULL);
+  return (param == nullptr);
 }
 
 bool SettingsOverrideAPIPermission::Contains(const APIPermission* rhs) const {
   CHECK_EQ(info(), rhs->info());
   return true;
 }
 
 bool SettingsOverrideAPIPermission::Equal(const APIPermission* rhs) const {
   if (this != rhs)
     CHECK_EQ(info(), rhs->info());
   return true;
 }
 
 bool SettingsOverrideAPIPermission::FromValue(
     const base::Value* value,
     std::string* /*error*/,
     std::vector<std::string>* unhandled_permissions) {
-  return (value == NULL);
+  return (value == nullptr);
 }
 
 scoped_ptr<base::Value> SettingsOverrideAPIPermission::ToValue() const {
   return scoped_ptr<base::Value>();
 }
 
 APIPermission* SettingsOverrideAPIPermission::Clone() const {
   return new SettingsOverrideAPIPermission(info(), setting_value_);
 }
 
 APIPermission* SettingsOverrideAPIPermission::Diff(
     const APIPermission* rhs) const {
   CHECK_EQ(info(), rhs->info());
-  return NULL;
+  return nullptr;
 }
 
 APIPermission* SettingsOverrideAPIPermission::Union(
     const APIPermission* rhs) const {
   CHECK_EQ(info(), rhs->info());
   return new SettingsOverrideAPIPermission(info(), setting_value_);
 }
 
 APIPermission* SettingsOverrideAPIPermission::Intersect(
     const APIPermission* rhs) const {
   CHECK_EQ(info(), rhs->info());
   return new SettingsOverrideAPIPermission(info(), setting_value_);
 }
 
 void SettingsOverrideAPIPermission::Write(IPC::Message* m) const {}
 
 bool SettingsOverrideAPIPermission::Read(const IPC::Message* m,
                                          PickleIterator* iter) {
   return true;
 }
 
 void SettingsOverrideAPIPermission::Log(std::string* log) const {}
 
 }  // namespace extensions