Add FingerprintUnlock KeyedService for each profile

chrome/browser/chromeos/login/screens/user_selection_screen.cc

Index: chrome/browser/chromeos/login/screens/user_selection_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/user_selection_screen.cc b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
index fb655e17bdcee9d016cc49655c34826228b81808..46ccdb78c7031bf1dc344932dd4076f465b3c61a 100644
--- a/chrome/browser/chromeos/login/screens/user_selection_screen.cc
+++ b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
@@ -15,6 +15,8 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
+#include "chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.h"
+#include "chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock_factory.h"
 #include "chrome/browser/chromeos/login/quick_unlock/pin_storage.h"
 #include "chrome/browser/chromeos/login/quick_unlock/pin_storage_factory.h"
 #include "chrome/browser/chromeos/login/reauth_stats.h"
@@ -62,6 +64,7 @@ const char kKeyInitialLocale[] = "initialLocale";
 const char kKeyInitialMultipleRecommendedLocales[] =
     "initialMultipleRecommendedLocales";
 const char kKeyInitialKeyboardLayout[] = "initialKeyboardLayout";
+const char kKeyAllowFingerprint[] = "allowFingerprint";
 
 // Max number of users to show.
 // Please keep synced with one in signin_userlist_unittest.cc.
@@ -131,6 +134,18 @@ bool CanShowPinForUser(user_manager::User* user) {
   return pin_storage->IsPinAuthenticationAvailable();
 }
 
+bool AllowFingerprintForUser(user_manager::User* user) {
+  if (!user->is_logged_in())
+    return false;
+
+  quick_unlock::FingerprintUnlock* fingerprint_unlock =
+      quick_unlock::FingerprintUnlockFactory::GetForUser(user);
+  if (!fingerprint_unlock)
+    return false;
+
+  return fingerprint_unlock->IsFingerprintAuthenticationAvailable();
+}
+
 }  // namespace
 
 UserSelectionScreen::UserSelectionScreen(const std::string& display_type)
@@ -180,6 +195,7 @@ void UserSelectionScreen::FillUserDictionary(
   user_dict->SetBoolean(kKeySignedIn, user->is_logged_in());
   user_dict->SetBoolean(kKeyIsOwner, is_owner);
   user_dict->SetBoolean(kKeyIsActiveDirectory, user->IsActiveDirectoryUser());
+  user_dict->SetBoolean(kKeyAllowFingerprint, AllowFingerprintForUser(user));
 
   FillMultiProfileUserPrefs(user, user_dict, is_signin_to_add);
   FillKnownUserPrefs(user, user_dict);