diff --git a/test_utils.h b/test_utils.h
index 008e1c5..32ae19d 100644
--- a/test_utils.h
+++ b/test_utils.h
@@ -14,6 +14,7 @@
 #include <vector>
 
 #include <base/memory/scoped_ptr.h>
+#include <glib-object.h>
 #include <gtest/gtest.h>
 
 #include "update_engine/action.h"
@@ -281,6 +282,12 @@
 // and the remaining events are not dispatched.
 int RunGMainLoopMaxIterations(int iterations);
 
+// Allocates, initializes and returns a string GValue object.
+GValue* GValueNewString(const char* str);
+
+// Frees a GValue object and its allocated resources.
+void GValueFree(gpointer arg);
+
 }  // namespace chromeos_update_engine
 
 #endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__