Introduce profile for lock screen apps

chrome/browser/signin/easy_unlock_service_factory.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_factory.h"
 
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
 #include "build/build_config.h"
 #include "chrome/browser/cryptauth/chrome_cryptauth_service_factory.h"
@@ skipping 66 matching lines @@
 
 EasyUnlockServiceFactory::~EasyUnlockServiceFactory() {
 }
 
 KeyedService* EasyUnlockServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   EasyUnlockService* service = NULL;
   int manifest_id = 0;
 
 #if defined(OS_CHROMEOS)
+  if (chromeos::ProfileHelper::IsLockScreenAppProfile(
+          Profile::FromBrowserContext(context))) {
+    return nullptr;
+  }
   if (chromeos::ProfileHelper::IsSigninProfile(
           Profile::FromBrowserContext(context))) {
     if (!context->IsOffTheRecord())
       return NULL;
 
     service = new EasyUnlockServiceSignin(Profile::FromBrowserContext(context));
     manifest_id = IDR_EASY_UNLOCK_MANIFEST_SIGNIN;
   }
 #endif
 
@@ skipping 33 matching lines @@
 bool EasyUnlockServiceFactory::ServiceIsCreatedWithBrowserContext() const {
   return true;
 }
 
 bool EasyUnlockServiceFactory::ServiceIsNULLWhileTesting() const {
   // Don't create the service for TestingProfile used in unit_tests because
   // EasyUnlockService uses ExtensionSystem::ready().Post, which expects
   // a MessageLoop that does not exit in many unit_tests cases.
   return true;
 }