Rewrite scoped_ptr<T>(NULL) to use the default ctor in content/.

content/browser/browser_plugin/browser_plugin_host_browsertest.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 "base/command_line.h"
 #include "base/memory/singleton.h"
 #include "base/run_loop.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 839 matching lines @@
 
 // Handles |request| by serving an empty response.
 scoped_ptr<net::test_server::HttpResponse> EmptyResponseHandler(
     const std::string& path,
     const net::test_server::HttpRequest& request) {
   if (StartsWithASCII(path, request.relative_url, true)) {
     return scoped_ptr<net::test_server::HttpResponse>(
         new EmptyHttpResponse);
   }
 
-  return scoped_ptr<net::test_server::HttpResponse>(NULL);
+  return scoped_ptr<net::test_server::HttpResponse>();
 }
 
 // Handles |request| by serving a redirect response.
 scoped_ptr<net::test_server::HttpResponse> RedirectResponseHandler(
     const std::string& path,
     const GURL& redirect_target,
     const net::test_server::HttpRequest& request) {
   if (!StartsWithASCII(path, request.relative_url, true))
-    return scoped_ptr<net::test_server::HttpResponse>(NULL);
+    return scoped_ptr<net::test_server::HttpResponse>();
 
   scoped_ptr<net::test_server::BasicHttpResponse> http_response(
       new net::test_server::BasicHttpResponse);
   http_response->set_code(net::test_server::MOVED);
   http_response->AddCustomHeader("Location", redirect_target.spec());
   return http_response.PassAs<net::test_server::HttpResponse>();
 }
 
 }  // namespace
 
@@ skipping 578 matching lines @@
     const string16 expected_title = ASCIIToUTF16("AutoSize(640, 480)");
     content::TitleWatcher title_watcher(test_embedder()->web_contents(),
                                         expected_title);
     RemoveAttributes(rvh, "maxwidth");
     string16 actual_title = title_watcher.WaitAndGetTitle();
     EXPECT_EQ(expected_title, actual_title);
   }
 }
 
 }  // namespace content