md-settings: Added settings for fingerprint unlock.

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 6df346e7da9ccc4647372b7c9164aa85d960752d..9d8c17ea1c305d82cdc90ed6e29840fd75c54497 100644
--- a/chrome/common/chrome_features.cc
+++ b/chrome/common/chrome_features.cc
@@ -227,10 +227,14 @@ const base::Feature kUseGroupedPermissionInfobars{
 const base::Feature kOptInImeMenu{"OptInImeMenu",
                                   base::FEATURE_ENABLED_BY_DEFAULT};
 
-// Enables or disables PIN quick unlock settings integration.
+// Enables or disables PIN quick unlock.
 const base::Feature kQuickUnlockPin{"QuickUnlockPin",
                                     base::FEATURE_ENABLED_BY_DEFAULT};
 
+// Enables or disables fingerprint quick unlock.
+const base::Feature kQuickUnlockFingerprint{"QuickUnlockFingerprint",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Enables or disables emoji, handwriting and voice input on opt-in IME menu.
 const base::Feature kEHVInputOnImeMenu{"EmojiHandwritingVoiceInput",
                                        base::FEATURE_ENABLED_BY_DEFAULT};