[components] Switch {RefCounted}ProfileKeyedService to use BrowserContext

chrome/browser/signin/oauth2_token_service_factory.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/browser/signin/oauth2_token_service_factory.h"
 
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/signin/oauth2_token_service.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/signin/token_service_factory.h"
 
 OAuth2TokenServiceFactory::OAuth2TokenServiceFactory()
     : ProfileKeyedServiceFactory("OAuth2TokenService",
                                  ProfileDependencyManager::GetInstance()) {
   DependsOn(SigninManagerFactory::GetInstance());
   DependsOn(TokenServiceFactory::GetInstance());
 }
 
 OAuth2TokenServiceFactory::~OAuth2TokenServiceFactory() {
 }
 
 // static
 OAuth2TokenService* OAuth2TokenServiceFactory::GetForProfile(Profile* profile) {
   return static_cast<OAuth2TokenService*>(
       GetInstance()->GetServiceForProfile(profile, true));
 }
 
 // static
 OAuth2TokenServiceFactory* OAuth2TokenServiceFactory::GetInstance() {
   return Singleton<OAuth2TokenServiceFactory>::get();
 }
 
 ProfileKeyedService* OAuth2TokenServiceFactory::BuildServiceInstanceFor(
-    Profile* profile) const {
+    content::BrowserContext* profile) const {
   OAuth2TokenService* service = new OAuth2TokenService();
-  service->Initialize(profile);
+  service->Initialize(static_cast<Profile*>(profile));
   return service;
 }