Convert //base to use std::unique_ptr

base/environment.h

 // 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.
 
 #ifndef BASE_ENVIRONMENT_H_
 #define BASE_ENVIRONMENT_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/base_export.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
 
 namespace base {
 
 namespace env_vars {
 
 #if defined(OS_POSIX)
 BASE_EXPORT extern const char kHome[];
 #endif
@@ skipping 49 matching lines @@
 typedef std::map<NativeEnvironmentString, NativeEnvironmentString>
     EnvironmentMap;
 
 // See general comments for the Windows version above.
 //
 // This Posix version takes and returns a Posix-style environment block, which
 // is a null-terminated list of pointers to null-terminated strings. The
 // returned array will have appended to it the storage for the array itself so
 // there is only one pointer to manage, but this means that you can't copy the
 // array without keeping the original around.
-BASE_EXPORT scoped_ptr<char*[]> AlterEnvironment(
+BASE_EXPORT std::unique_ptr<char* []> AlterEnvironment(
     const char* const* env,
     const EnvironmentMap& changes);
 
 #endif
 
 }  // namespace base
 
 #endif  // BASE_ENVIRONMENT_H_