Implements the feature notification for Quick Unlock

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 870 matching lines @@
 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";
 
+// A boolean pref. Indicates if we've already shown a notification to inform the
+// current user about the quick unlock feature.
+const char kQuickUnlockFeatureNotificationShown[] =
+    "quick_unlock_feature_notification_shown";
+
 // The salt and hash for the pin quick unlock mechanism.
 const char kQuickUnlockPinSalt[] = "quick_unlock.pin.salt";
 const char kQuickUnlockPinSecret[] = "quick_unlock.pin.secret";
 
 // An integer pref. Holds one of several values:
 // 0: Supported. Device is in supported state.
 // 1: Security Only. Device is in Security-Only update (after initial 5 years).
 // 2: EOL. Device is End of Life(No more updates expected).
 // This value needs to be consistent with EndOfLifeStatus enum.
 const char kEolStatus[] = "eol_status";
@@ skipping 1355 matching lines @@
 #endif
 
 // The base64-encoded representation of the public key to use to validate origin
 // trial token signatures.
 const char kOriginTrialPublicKey[] = "origin_trials.public_key";
 
 // A list of origin trial features to disable by policy.
 const char kOriginTrialDisabledFeatures[] = "origin_trials.disabled_features";
 
 }  // namespace prefs