Fix misuses of DISALLOW_IMPLICIT_CONSTRUCTORS()

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 c69a5c30475e5bf2123e99a1861f3452982b2313..e6a3e4c5cad2837848c2284d29ab8bc30b742f62 100644
--- a/sandbox/linux/suid/client/setuid_sandbox_client.h
+++ b/sandbox/linux/suid/client/setuid_sandbox_client.h
@@ -92,10 +92,13 @@ class SANDBOX_EXPORT SetuidSandboxClient {
   void SetupLaunchEnvironment();
 
  private:
+  SetuidSandboxClient();
+
   // Holds the environment. Will never be NULL.
   base::Environment* env_;
   bool sandboxed_;
-  DISALLOW_IMPLICIT_CONSTRUCTORS(SetuidSandboxClient);
+
+  DISALLOW_COPY_AND_ASSIGN(SetuidSandboxClient);
 };
 
 }  // namespace sandbox