Fix remaining incompatibilities between scoped_ptr and unique_ptr.

net/test/cert_test_util_nss.cc

Index: net/test/cert_test_util_nss.cc
diff --git a/net/test/cert_test_util_nss.cc b/net/test/cert_test_util_nss.cc
index 4cd435bc3ac660d1b059461363d06896b5915e02..b171fe9e84125ead35a7506211f5c2ddab02738e 100644
--- a/net/test/cert_test_util_nss.cc
+++ b/net/test/cert_test_util_nss.cc
@@ -37,7 +37,7 @@ bool ImportSensitiveKeyFromFile(const base::FilePath& dir,
                                              true /* permanent */));
   LOG_IF(ERROR, !private_key) << "Could not create key from file "
                               << key_path.value();
-  return private_key;
+  return !!private_key;
 }
 
 bool ImportClientCertToSlot(const scoped_refptr<X509Certificate>& cert,