Implement pin storage backend.

chrome/common/pref_names.cc

 // Copyright (c) 2012 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/common/pref_names.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
@@ skipping 850 matching lines @@
 // while this is set to true.
 const char kUnifiedDesktopEnabledByDefault[] =
     "settings.display.unified_desktop_enabled_by_default";
 
 // Whether the Chrome OS lock screen is allowed.
 const char kAllowScreenLock[] = "allow_screen_lock";
 
 // An int64 pref. This is a timestamp of the most recent time the profile took
 // or dismissed HaTS (happiness-tracking) survey.
 const char kHatsLastInteractionTimestamp[] = "hats_last_interaction_timestamp";
+
+// The salt and hash for the pin quick unlock mechanism.
+const char kQuickUnlockPinSalt[] = "quick_unlock.pin.salt";
+const char kQuickUnlockPinSecret[] = "quick_unlock.pin.secret";
 #endif  // defined(OS_CHROMEOS)
 
 // A boolean pref set to true if a Home button to open the Home pages should be
 // visible on the toolbar.
 const char kShowHomeButton[] = "browser.show_home_button";
 
 // A string value which saves short list of recently user selected encodings
 // separated with comma punctuation mark.
 const char kRecentlySelectedEncoding[] = "profile.recently_selected_encodings";
 
@@ skipping 1293 matching lines @@
 const char kMediaRouterEnableCloudServices[] =
     "media_router.cloudservices.enabled";
 #endif  // defined(GOOGLE_CHROME_BUILD)
 // Whether or not the Media Router first run flow has been acknowledged by the
 // user.
 const char kMediaRouterFirstRunFlowAcknowledged[] =
     "media_router.firstrunflow.acknowledged";
 #endif
 
 }  // namespace prefs