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

extensions/browser/api/declarative/test_rules_registry.cc

 // Copyright (c) 2012 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 <string>
 
 #include "extensions/browser/api/declarative/test_rules_registry.h"
 
 namespace extensions {
 
 TestRulesRegistry::TestRulesRegistry(content::BrowserThread::ID owner_thread,
                                      const std::string& event_name,
                                      const WebViewKey& webview_key)
-    : RulesRegistry(NULL /*profile*/,
+    : RulesRegistry(nullptr /*profile*/,
                     event_name,
                     owner_thread,
-                    NULL,
-                    webview_key) {}
+                    nullptr,
+                    webview_key) {
+}
 
 TestRulesRegistry::TestRulesRegistry(
     content::BrowserContext* browser_context,
     const std::string& event_name,
     content::BrowserThread::ID owner_thread,
     RulesCacheDelegate* cache_delegate,
     const WebViewKey& webview_key)
     : RulesRegistry(browser_context,
                     event_name,
                     owner_thread,
@@ skipping 17 matching lines @@
   return result_;
 }
 
 void TestRulesRegistry::SetResult(const std::string& result) {
   result_ = result;
 }
 
 TestRulesRegistry::~TestRulesRegistry() {}
 
 }  // namespace extensions