Convert //components/user_prefs from scoped_ptr to std::unique_ptr

components/user_prefs/tracked/device_id_win.cc

 // Copyright 2015 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 "components/user_prefs/tracked/device_id.h"
 
 #include <windows.h>
 #include <sddl.h>  // For ConvertSidToStringSidA.
 
+#include <memory>
+
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 
 MachineIdStatus GetDeterministicMachineSpecificId(std::string* machine_id) {
   DCHECK(machine_id);
 
   wchar_t computer_name[MAX_COMPUTERNAME_LENGTH + 1] = {};
   DWORD computer_name_size = arraysize(computer_name);
 
   if (!::GetComputerNameW(computer_name, &computer_name_size))
     return MachineIdStatus::FAILURE;
 
   DWORD sid_size = SECURITY_MAX_SID_SIZE;
   char sid_buffer[SECURITY_MAX_SID_SIZE];
   SID* sid = reinterpret_cast<SID*>(sid_buffer);
   DWORD domain_size = 128;  // Will expand below if needed.
-  scoped_ptr<wchar_t[]> domain_buffer(new wchar_t[domain_size]);
+  std::unique_ptr<wchar_t[]> domain_buffer(new wchar_t[domain_size]);
   SID_NAME_USE sid_name_use;
 
   // Although the fifth argument to |LookupAccountNameW()|,
   // |ReferencedDomainName|, is annotated as |_Out_opt_|, if a null
   // value is passed in, zero is returned and |GetLastError()| will
   // return |ERROR_INSUFFICIENT_BUFFER| (assuming that nothing else went
   // wrong). In order to ensure that the call to |LookupAccountNameW()|
   // has succeeded, it is necessary to include the following logic and
   // obtain the domain name.
   if (!::LookupAccountNameW(nullptr, computer_name, sid, &sid_size,
@@ skipping 24 matching lines @@
 
   char* sid_string = nullptr;
   if (!::ConvertSidToStringSidA(sid, &sid_string))
     return MachineIdStatus::FAILURE;
 
   *machine_id = sid_string;
   ::LocalFree(sid_string);
 
   return MachineIdStatus::SUCCESS;
 }