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

extensions/common/manifest_handlers/launcher_page_info.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/manifest_handlers/launcher_page_info.h"
 
 #include "base/files/file_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_constants.h"
@@ skipping 10 matching lines @@
 
 // static
 LauncherPageInfo* LauncherPageHandler::GetInfo(const Extension* extension) {
   return static_cast<LauncherPageInfo*>(
       extension->GetManifestData(manifest_keys::kLauncherPage));
 }
 
 bool LauncherPageHandler::Parse(Extension* extension, base::string16* error) {
   const extensions::Manifest* manifest = extension->manifest();
   scoped_ptr<LauncherPageInfo> launcher_page_info(new LauncherPageInfo);
-  const base::DictionaryValue* launcher_page_dict = NULL;
+  const base::DictionaryValue* launcher_page_dict = nullptr;
   if (!manifest->GetDictionary(manifest_keys::kLauncherPage,
                                &launcher_page_dict)) {
     *error = base::ASCIIToUTF16(manifest_errors::kInvalidLauncherPage);
     return false;
   }
 
   if (!manifest->HasPath(extensions::manifest_keys::kLauncherPagePage)) {
     *error = base::ASCIIToUTF16(manifest_errors::kLauncherPagePageRequired);
     return false;
   }
@@ skipping 25 matching lines @@
   }
 
   return true;
 }
 
 const std::vector<std::string> LauncherPageHandler::Keys() const {
   return SingleKey(manifest_keys::kLauncherPage);
 }
 
 }  // namespace extensions