Make base::Environment::Create() return unique_ptrs.

sandbox/linux/suid/client/setuid_sandbox_client.h

 // 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.
 
-#ifndef SANDBOX_LINUX_SUID_SETUID_SANDBOX_CLIENT_H_
-#define SANDBOX_LINUX_SUID_SETUID_SANDBOX_CLIENT_H_
+#ifndef SANDBOX_LINUX_SUID_CLIENT_SETUID_SANDBOX_CLIENT_H_
+#define SANDBOX_LINUX_SUID_CLIENT_SETUID_SANDBOX_CLIENT_H_
 
 #include <memory>
 
 #include "base/environment.h"
 #include "base/macros.h"
 #include "sandbox/sandbox_export.h"
 
 namespace sandbox {
 
 // Helper class to use the setuid sandbox. This class is to be used
@@ skipping 34 matching lines @@
   // Did we get launched through the setuid helper ?
   bool IsSuidSandboxChild() const;
   // Did the setuid helper create a new PID namespace ?
   bool IsInNewPIDNamespace() const;
   // Did the setuid helper create a new network namespace ?
   bool IsInNewNETNamespace() const;
   // Are we done and fully sandboxed ?
   bool IsSandboxed() const;
 
  private:
-  explicit SetuidSandboxClient(base::Environment* env);
+  explicit SetuidSandboxClient(std::unique_ptr<base::Environment> env);
 
   // Holds the environment. Will never be NULL.
   std::unique_ptr<base::Environment> env_;
   bool sandboxed_;
 
   DISALLOW_COPY_AND_ASSIGN(SetuidSandboxClient);
 };
 
 }  // namespace sandbox
 
-#endif  // SANDBOX_LINUX_SUID_SETUID_SANDBOX_CLIENT_H_
+#endif  // SANDBOX_LINUX_SUID_CLIENT_SETUID_SANDBOX_CLIENT_H_