Add Easy Unlock options to chrome://settings behind a flag.

chrome/browser/signin/easy_unlock_controller.cc

Index: chrome/browser/signin/easy_unlock_controller.cc
diff --git a/chrome/browser/signin/easy_unlock_controller.cc b/chrome/browser/signin/easy_unlock_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d19a6d04645c8151f01fe3026fcf065d241abfe5
--- /dev/null
+++ b/chrome/browser/signin/easy_unlock_controller.cc
@@ -0,0 +1,26 @@
+// Copyright 2014 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/browser/signin/easy_unlock_controller.h"
+
+#include "base/values.h"
+#include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
+
+// static.
+void EasyUnlockController::RegisterProfilePrefs(
+    user_prefs::PrefRegistrySyncable* registry) {
+  registry->RegisterBooleanPref(
+      prefs::kEasyUnlockEnabled,
+      false,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(
+      prefs::kEasyUnlockShowTutorial,
+      false,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterDictionaryPref(
+      prefs::kEasyUnlockPairing,
+      new base::DictionaryValue(),
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+}