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

chrome/browser/chromeos/login/login_utils_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 "chrome/browser/chromeos/login/login_utils.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 151 matching lines @@
         fake_io_thread_("fake_io_thread"),
         loop_(base::MessageLoop::TYPE_IO),
         browser_process_(TestingBrowserProcess::GetGlobal()),
         local_state_(browser_process_),
         ui_thread_(BrowserThread::UI, &loop_),
         db_thread_(BrowserThread::DB, &loop_),
         file_thread_(BrowserThread::FILE, &loop_),
         mock_input_method_manager_(NULL),
         mock_async_method_caller_(NULL),
         connector_(NULL),
-        cryptohome_(NULL),
         prepared_profile_(NULL) {}
 
   virtual void SetUp() OVERRIDE {
     // This test is not a full blown InProcessBrowserTest, and doesn't have
     // all the usual threads running. However a lot of subsystems pulled from
     // ProfileImpl post to IO (usually from ProfileIOData), and DCHECK that
     // those tasks were posted. Those tasks in turn depend on a lot of other
     // components that aren't there during this test, so this kludge is used to
     // have a running IO loop that doesn't really execute any tasks.
     //
@@ skipping 543 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     LoginUtilsBlockingLoginTestInstance,
     LoginUtilsBlockingLoginTest,
     testing::Values(0, 1, 2, 3, 4, 5));
 
 }  // namespace
 
 }