Adding pref to store the user-selected proximity threshold.

chrome/browser/signin/easy_unlock_service_regular.cc

 // 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_service_regular.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 432 matching lines @@
 void EasyUnlockServiceRegular::InitializeInternal() {
   proximity_auth::ScreenlockBridge::Get()->AddObserver(this);
   registrar_.Init(profile()->GetPrefs());
   registrar_.Add(
       prefs::kEasyUnlockAllowed,
       base::Bind(&EasyUnlockServiceRegular::OnPrefsChanged,
                  base::Unretained(this)));
   registrar_.Add(prefs::kEasyUnlockProximityRequired,
                  base::Bind(&EasyUnlockServiceRegular::OnPrefsChanged,
                             base::Unretained(this)));
+  registrar_.Add(prefs::kEasyUnlockProximityThreshold,
+                 base::Bind(&EasyUnlockServiceRegular::OnPrefsChanged,
+                            base::Unretained(this)));
 
   OnPrefsChanged();
 
 #if defined(OS_CHROMEOS)
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           proximity_auth::switches::kEnableBluetoothLowEnergyDiscovery)) {
     pref_manager_.reset(
         new proximity_auth::ProximityAuthPrefManager(profile()->GetPrefs()));
     GetCryptAuthDeviceManager()->AddObserver(this);
     LoadRemoteDevices();
@@ skipping 144 matching lines @@
   if (!local_state || !profile_prefs)
     return;
 
   // Create the dictionary of Easy Unlock preferences for the current user. The
   // items in the dictionary are the same profile prefs used for Easy Unlock.
   std::unique_ptr<base::DictionaryValue> user_prefs_dict(
       new base::DictionaryValue());
   user_prefs_dict->SetBooleanWithoutPathExpansion(
       prefs::kEasyUnlockProximityRequired,
       profile_prefs->GetBoolean(prefs::kEasyUnlockProximityRequired));
+  user_prefs_dict->SetIntegerWithoutPathExpansion(
+      prefs::kEasyUnlockProximityThreshold,
+      profile_prefs->GetInteger(prefs::kEasyUnlockProximityThreshold));
 
   DictionaryPrefUpdate update(local_state,
                               prefs::kEasyUnlockLocalStateUserPrefs);
   update->SetWithoutPathExpansion(GetAccountId().GetUserEmail(),
                                   std::move(user_prefs_dict));
 }
 
 cryptauth::CryptAuthEnrollmentManager*
 EasyUnlockServiceRegular::GetCryptAuthEnrollmentManager() {
   cryptauth::CryptAuthEnrollmentManager* manager =
       ChromeCryptAuthServiceFactory::GetInstance()
           ->GetForBrowserContext(profile())
           ->GetCryptAuthEnrollmentManager();
   DCHECK(manager);
   return manager;
 }
 
 cryptauth::CryptAuthDeviceManager*
 EasyUnlockServiceRegular::GetCryptAuthDeviceManager() {
   cryptauth::CryptAuthDeviceManager* manager =
       ChromeCryptAuthServiceFactory::GetInstance()
           ->GetForBrowserContext(profile())
           ->GetCryptAuthDeviceManager();
   DCHECK(manager);
   return manager;
 }