Convert //sandbox to use std::unique_ptr

sandbox/win/src/address_sanitizer_test.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 <stdio.h>
 
+#include <memory>
+
 #include "base/environment.h"
 #include "base/files/file_path.h"
 #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/win/scoped_handle.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/tests/common/controller.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace sandbox {
 
 class AddressSanitizerTests : public ::testing::Test {
  public:
   void SetUp() override {
     env_.reset(base::Environment::Create());
     had_asan_options_ = env_->GetVar("ASAN_OPTIONS", &old_asan_options_);
   }
 
   void TearDown() override {
     if (had_asan_options_)
       ASSERT_TRUE(env_->SetVar("ASAN_OPTIONS", old_asan_options_));
     else
       env_->UnSetVar("ASAN_OPTIONS");
   }
 
  protected:
-  scoped_ptr<base::Environment> env_;
+  std::unique_ptr<base::Environment> env_;
   bool had_asan_options_;
   std::string old_asan_options_;
 };
 
 SBOX_TESTS_COMMAND int AddressSanitizerTests_Report(int argc, wchar_t** argv) {
   // AddressSanitizer should detect an out of bounds write (heap buffer
   // overflow) in this code.
   volatile int idx = 42;
   int *volatile blah = new int[42];
   blah[idx] = 42;
@@ skipping 52 matching lines @@
     size_t last_slash = source_file_basename.find_last_of("/\\");
     last_slash = last_slash == std::string::npos ? 0 : last_slash + 1;
     ASSERT_TRUE(strstr(data.c_str(), &source_file_basename[last_slash]))
         << "The stack trace doesn't have a correct filename:\n" << data;
   } else {
     LOG(WARNING) << "Not an AddressSanitizer build, skipping the run.";
   }
 }
 
 }