Include gtest and gmock headers as user headers instead of system headers.
diff --git a/test/gmock-cardinalities_test.cc b/test/gmock-cardinalities_test.cc
index f6a9491..64815e5 100644
--- a/test/gmock-cardinalities_test.cc
+++ b/test/gmock-cardinalities_test.cc
@@ -33,9 +33,9 @@
 //
 // This file tests the built-in cardinalities.
 
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gtest/gtest-spi.h>
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include "gtest/gtest-spi.h"
 
 namespace {