cros: Implement cryptohome backend for pin.

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

Index: chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.cc
diff --git a/chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.cc b/chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.cc
index a3b2dea7934457faee941f328f9b6f71f67ecb71..80a80e7aa8d88529e69e6c3413d20fc09bffd5d2 100644
--- a/chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.cc
+++ b/chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.cc
@@ -4,17 +4,20 @@
 
 #include "chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.h"
 
+#include "chrome/browser/chromeos/login/quick_unlock/fingerprint_storage.h"
+#include "chrome/browser/chromeos/login/quick_unlock/pin_storage_prefs.h"
 #include "chrome/browser/chromeos/login/quick_unlock/quick_unlock_utils.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
 
 namespace chromeos {
 namespace quick_unlock {
 
-QuickUnlockStorage::QuickUnlockStorage(PrefService* pref_service)
-    : pref_service_(pref_service) {
-  fingerprint_storage_ = base::MakeUnique<FingerprintStorage>(pref_service);
-  pin_storage_ = base::MakeUnique<PinStorage>(pref_service);
+QuickUnlockStorage::QuickUnlockStorage(Profile* profile)
+    : pref_service_(profile->GetPrefs()) {
+  fingerprint_storage_ = base::MakeUnique<FingerprintStorage>(pref_service_);
+  pin_storage_ = base::MakeUnique<PinStoragePrefs>(profile);
 }
 
 QuickUnlockStorage::~QuickUnlockStorage() {}
@@ -22,7 +25,7 @@ QuickUnlockStorage::~QuickUnlockStorage() {}
 void QuickUnlockStorage::MarkStrongAuth() {
   last_strong_auth_ = base::Time::Now();
   fingerprint_storage()->ResetUnlockAttemptCount();
-  pin_storage()->ResetUnlockAttemptCount();
+  pin_storage_->ResetUnlockAttemptCount();
 }
 
 bool QuickUnlockStorage::HasStrongAuth() const {
@@ -49,22 +52,6 @@ bool QuickUnlockStorage::IsFingerprintAuthenticationAvailable() const {
          fingerprint_storage_->IsFingerprintAuthenticationAvailable();
 }
 
-bool QuickUnlockStorage::IsPinAuthenticationAvailable() const {
-  return HasStrongAuth() && pin_storage_->IsPinAuthenticationAvailable();
-}
-
-bool QuickUnlockStorage::TryAuthenticatePin(const std::string& pin) {
-  return HasStrongAuth() && pin_storage()->TryAuthenticatePin(pin);
-}
-
-FingerprintStorage* QuickUnlockStorage::fingerprint_storage() {
-  return fingerprint_storage_.get();
-}
-
-PinStorage* QuickUnlockStorage::pin_storage() {
-  return pin_storage_.get();
-}
-
 void QuickUnlockStorage::Shutdown() {
   fingerprint_storage_.reset();
   pin_storage_.reset();