Add FingerprintUnlock KeyedService for each profile

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

Index: chrome/browser/chromeos/login/quick_unlock/pin_storage.h
diff --git a/chrome/browser/chromeos/login/quick_unlock/pin_storage.h b/chrome/browser/chromeos/login/quick_unlock/pin_storage.h
index 56333fd484bd9925c06206575a58a524640d9c72..c6358a8332d3288a8ffa18d2617345077fa7c2e8 100644
--- a/chrome/browser/chromeos/login/quick_unlock/pin_storage.h
+++ b/chrome/browser/chromeos/login/quick_unlock/pin_storage.h
@@ -9,7 +9,6 @@
 
 #include "base/gtest_prod_util.h"
 #include "base/time/time.h"
-#include "components/keyed_service/core/keyed_service.h"
 
 class PrefRegistrySimple;
 class PrefService;
@@ -20,7 +19,7 @@ class PinStorageTestApi;
 
 namespace quick_unlock {
 
-class PinStorage : public KeyedService {
+class PinStorage {
  public:
   // TODO(sammiequon): Pull this value in from policy. See crbug.com/612271.
   static const int kMaximumUnlockAttempts = 3;
@@ -29,7 +28,7 @@ class PinStorage : public KeyedService {
   static void RegisterProfilePrefs(PrefRegistrySimple* registry);
 
   explicit PinStorage(PrefService* pref_service);
-  ~PinStorage() override;
+  ~PinStorage();
 
   // Mark in storage that the user has had a strong authentication. This means
   // that they authenticated with their password, for example. PIN unlock will