[components] Switch {RefCounted}ProfileKeyedService to use BrowserContext

chrome/browser/signin/profile_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/profile_oauth2_token_service_factory.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/signin/profile_oauth2_token_service.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
@@ skipping 20 matching lines @@
       GetInstance()->GetServiceForProfile(profile, true));
 }
 
 // static
 ProfileOAuth2TokenServiceFactory*
     ProfileOAuth2TokenServiceFactory::GetInstance() {
   return Singleton<ProfileOAuth2TokenServiceFactory>::get();
 }
 
 ProfileKeyedService* ProfileOAuth2TokenServiceFactory::BuildServiceInstanceFor(
-    Profile* profile) const {
+    content::BrowserContext* context) const {
+  Profile* profile = static_cast<Profile*>(context);
   ProfileOAuth2TokenService* service;
 #if defined(OS_ANDROID)
   service = new AndroidProfileOAuth2TokenService(profile->GetRequestContext());
 #else
   service = new ProfileOAuth2TokenService(profile->GetRequestContext());
 #endif
   service->Initialize(profile);
   return service;
 }