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

net/socket/deterministic_socket_data_unittest.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 "net/socket/socket_test_util.h"
 
 #include <string.h>
 
 #include "base/memory/ref_counted.h"
 #include "testing/platform_test.h"
@@ skipping 50 matching lines @@
   ClientSocketPoolHistograms histograms_;
   DeterministicMockClientSocketFactory socket_factory_;
   MockTransportClientSocketPool socket_pool_;
   ClientSocketHandle connection_;
 
   DISALLOW_COPY_AND_ASSIGN(DeterministicSocketDataTest);
 };
 
 DeterministicSocketDataTest::DeterministicSocketDataTest()
     : sock_(NULL),
-      data_(NULL),
       read_buf_(NULL),
       connect_data_(SYNCHRONOUS, OK),
       endpoint_("www.google.com", 443),
       tcp_params_(new TransportSocketParams(endpoint_,
                                             LOWEST,
                                             false,
                                             false,
                                             OnHostResolutionCallback())),
       histograms_(std::string()),
       socket_pool_(10, 10, &histograms_, &socket_factory_) {}
@@ skipping 531 matching lines @@
   data_->StopAfter(1);
   AssertSyncWriteEquals(kMsg3, kLen3);
 
   data_->RunFor(1);
   ASSERT_TRUE(read_callback_.have_result());
   ASSERT_EQ(kLen2, read_callback_.WaitForResult());
   AssertReadBufferEquals(kMsg2, kLen2);
 }
 
 }  // namespace net