[components] Switch {RefCounted}ProfileKeyedService to use BrowserContext

chrome/browser/history/web_history_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/history/web_history_service_factory.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/history/web_history_service.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
@@ skipping 27 matching lines @@
 history::WebHistoryService* WebHistoryServiceFactory::GetForProfile(
       Profile* profile) {
   if (IsHistorySyncEnabled(profile)) {
     return static_cast<history::WebHistoryService*>(
         GetInstance()->GetServiceForProfile(profile, true));
   }
   return NULL;
 }
 
 ProfileKeyedService* WebHistoryServiceFactory::BuildServiceInstanceFor(
-    Profile* profile) const {
+    content::BrowserContext* context) const {
+  Profile* profile = static_cast<Profile*>(context);
+
   // Ensure that the service is not instantiated or used if the user is not
   // signed into sync, or if web history is not enabled.
   return IsHistorySyncEnabled(profile) ?
       new history::WebHistoryService(profile) : NULL;
 }
 
 WebHistoryServiceFactory::WebHistoryServiceFactory()
     : ProfileKeyedServiceFactory("WebHistoryServiceFactory",
                                  ProfileDependencyManager::GetInstance()) {
   DependsOn(TokenServiceFactory::GetInstance());
   DependsOn(CookieSettings::Factory::GetInstance());
 }
 
 WebHistoryServiceFactory::~WebHistoryServiceFactory() {
 }