Add FingerprintUnlock KeyedService for each profile

chrome/browser/chromeos/login/quick_unlock/pin_storage.cc

Index: chrome/browser/chromeos/login/quick_unlock/pin_storage.cc
diff --git a/chrome/browser/chromeos/login/quick_unlock/pin_storage.cc b/chrome/browser/chromeos/login/quick_unlock/pin_storage.cc
index bc4e2f79907373a9a7a27d86b7969f15d912a3e3..4f4c04e4bcc69bbae79ec665ab25a426d7089ec8 100644
--- a/chrome/browser/chromeos/login/quick_unlock/pin_storage.cc
+++ b/chrome/browser/chromeos/login/quick_unlock/pin_storage.cc
@@ -38,22 +38,6 @@ std::string ComputeSecret(const std::string& pin, const std::string& salt) {
   return key.GetSecret();
 }
 
-base::TimeDelta PasswordConfirmationFrequencyToTimeDelta(
-    PasswordConfirmationFrequency frequency) {
-  switch (frequency) {
-    case PasswordConfirmationFrequency::SIX_HOURS:
-      return base::TimeDelta::FromHours(6);
-    case PasswordConfirmationFrequency::TWELVE_HOURS:
-      return base::TimeDelta::FromHours(12);
-    case PasswordConfirmationFrequency::DAY:
-      return base::TimeDelta::FromDays(1);
-    case PasswordConfirmationFrequency::WEEK:
-      return base::TimeDelta::FromDays(7);
-  }
-  NOTREACHED();
-  return base::TimeDelta();
-}
-
 }  // namespace
 
 // static