// hasn't been called.
bool ListPrefMatches(const char* pref_name) WARN_UNUSED_RESULT;
+// This is the version of ListPrefMatches that waits for the preference list
+// to match in all profiles. Returns false if this operation times out.
+bool AwaitListPrefMatches(const char* pref_name) WARN_UNUSED_RESULT;
+
} // namespace preferences_helper
#endif // CHROME_BROWSER_SYNC_TEST_INTEGRATION_PREFERENCES_HELPER_H_