Convert //sandbox to use std::unique_ptr

sandbox/win/src/process_mitigations_test.cc

 // Copyright (c) 2011 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/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/process/launch.h"
 #include "base/strings/stringprintf.h"
 #include "base/win/scoped_handle.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/src/nt_internals.h"
 #include "sandbox/win/src/process_mitigations.h"
 #include "sandbox/win/src/sandbox.h"
 #include "sandbox/win/src/sandbox_factory.h"
 #include "sandbox/win/src/target_services.h"
@@ skipping 708 matching lines @@
   cmd = cmd.Append(L"calc.exe");
 
   std::wstring test_command(base::StringPrintf(L"TestChildProcess %ls 0x%08X",
                                                cmd.value().c_str(),
                                                STATUS_ACCESS_VIOLATION));
 
   EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(test_command.c_str()));
 }
 
 }  // namespace sandbox