Enable PIN configuration settings.

chrome/common/chrome_features.cc

Index: chrome/common/chrome_features.cc
diff --git a/chrome/common/chrome_features.cc b/chrome/common/chrome_features.cc
index de5738aafa1199f942ba47b878689a13eeeed1db..f90959f96c3227b0f1d1d854ae34ca508e5e75e6 100644
--- a/chrome/common/chrome_features.cc
+++ b/chrome/common/chrome_features.cc
@@ -99,6 +99,10 @@ const base::Feature kSyzyasanDeferredFree{"SyzyasanDeferredFree",
 // Enables or disables the opt-in IME menu in the language settings page.
 const base::Feature kOptInImeMenu{"OptInImeMenu",
                                   base::FEATURE_DISABLED_BY_DEFAULT};
+
+// Enables or disables PIN quick unlock settings integration.
+const base::Feature kQuickUnlockPin{"QuickUnlockPin",
+                                    base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace features