Add FingerprintUnlock KeyedService for each profile

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/quick_unlock/pin_storage.h"
 
 #include "base/base64.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/chromeos/login/quick_unlock/quick_unlock_utils.h"
 #include "chrome/common/pref_names.h"
@@ skipping 20 matching lines @@
   return salt;
 }
 
 // Computes the hash for |pin| and |salt|.
 std::string ComputeSecret(const std::string& pin, const std::string& salt) {
   Key key(pin);
   key.Transform(Key::KEY_TYPE_SALTED_PBKDF2_AES256_1234, 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
 void PinStorage::RegisterProfilePrefs(PrefRegistrySimple* registry) {
   registry->RegisterStringPref(prefs::kQuickUnlockPinSalt, "");
   registry->RegisterStringPref(prefs::kQuickUnlockPinSecret, "");
 }
 
 PinStorage::PinStorage(PrefService* pref_service)
     : pref_service_(pref_service) {}
 
 PinStorage::~PinStorage() {}
 
-void PinStorage::MarkStrongAuth() {
-  last_strong_auth_ = base::Time::Now();
-  ResetUnlockAttemptCount();
-}
-
-bool PinStorage::HasStrongAuth() const {
-  if (last_strong_auth_.is_null())
-    return false;
-
-  PasswordConfirmationFrequency strong_auth_interval =
-      static_cast<PasswordConfirmationFrequency>(
-          pref_service_->GetInteger(prefs::kQuickUnlockTimeout));
-  base::TimeDelta strong_auth_timeout =
-      PasswordConfirmationFrequencyToTimeDelta(strong_auth_interval);
-
-  return TimeSinceLastStrongAuth() < strong_auth_timeout;
-}
-
-base::TimeDelta PinStorage::TimeSinceLastStrongAuth() const {
-  DCHECK(!last_strong_auth_.is_null());
-  return base::Time::Now() - last_strong_auth_;
-}
-
 void PinStorage::AddUnlockAttempt() {
   ++unlock_attempt_count_;
 }
 
 void PinStorage::ResetUnlockAttemptCount() {
   unlock_attempt_count_ = 0;
 }
 
 bool PinStorage::IsPinSet() const {
   return !PinSalt().empty() && !PinSecret().empty();
@@ skipping 17 matching lines @@
 }
 
 std::string PinStorage::PinSecret() const {
   return pref_service_->GetString(prefs::kQuickUnlockPinSecret);
 }
 
 bool PinStorage::IsPinAuthenticationAvailable() const {
   const bool exceeded_unlock_attempts =
       unlock_attempt_count() >= kMaximumUnlockAttempts;
 
-  return IsPinEnabled(pref_service_) && IsPinSet() && HasStrongAuth() &&
-         !exceeded_unlock_attempts;
+  return IsPinEnabled(pref_service_) && IsPinSet() && !exceeded_unlock_attempts;
 }
 
 bool PinStorage::TryAuthenticatePin(const std::string& pin) {
   if (!IsPinAuthenticationAvailable())
     return false;
 
   AddUnlockAttempt();
   return ComputeSecret(pin, PinSalt()) == PinSecret();
 }
 
 }  // namespace quick_unlock
 }  // namespace chromeos