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

sandbox/linux/suid/client/setuid_sandbox_client.h

Index: sandbox/linux/suid/client/setuid_sandbox_client.h
diff --git a/sandbox/linux/suid/client/setuid_sandbox_client.h b/sandbox/linux/suid/client/setuid_sandbox_client.h
index d1cff4256aa98fcc85ecc02e1eaed403fdbae629..21ddab69767aa4c8504794a48006e25e371d7f50 100644
--- a/sandbox/linux/suid/client/setuid_sandbox_client.h
+++ b/sandbox/linux/suid/client/setuid_sandbox_client.h
@@ -2,8 +2,8 @@
 // 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>
 
@@ -58,7 +58,7 @@ class SANDBOX_EXPORT SetuidSandboxClient {
   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_;
@@ -69,4 +69,4 @@ class SANDBOX_EXPORT SetuidSandboxClient {
 
 }  // namespace sandbox
 
-#endif  // SANDBOX_LINUX_SUID_SETUID_SANDBOX_CLIENT_H_
+#endif  // SANDBOX_LINUX_SUID_CLIENT_SETUID_SANDBOX_CLIENT_H_