Revert of Simplify BrowserContext by removing redundant methods.

chrome/browser/sync_file_system/drive_backend/sync_engine.cc

 // Copyright 2013 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/sync_file_system/drive_backend/sync_engine.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 32 matching lines @@
 #include "chrome/browser/sync_file_system/file_status_observer.h"
 #include "chrome/browser/sync_file_system/logger.h"
 #include "chrome/browser/sync_file_system/syncable_file_system_util.h"
 #include "components/drive/drive_notification_manager.h"
 #include "components/drive/drive_uploader.h"
 #include "components/drive/service/drive_api_service.h"
 #include "components/drive/service/drive_service_interface.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "content/public/browser/browser_thread.h"
-#include "content/public/browser/storage_partition.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/extension_system_provider.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/common/extension.h"
 #include "google_apis/drive/drive_api_url_generator.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "storage/browser/blob/scoped_file.h"
 #include "storage/common/fileapi/file_system_util.h"
 
 namespace sync_file_system {
@@ skipping 124 matching lines @@
   Profile* profile = Profile::FromBrowserContext(context);
   drive::DriveNotificationManager* notification_manager =
       drive::DriveNotificationManagerFactory::GetForBrowserContext(context);
   ExtensionService* extension_service =
       extensions::ExtensionSystem::Get(context)->extension_service();
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile);
   OAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
   scoped_refptr<net::URLRequestContextGetter> request_context =
-      content::BrowserContext::GetDefaultStoragePartition(context)->
-            GetURLRequestContext();
+      context->GetRequestContext();
 
   std::unique_ptr<drive_backend::SyncEngine> sync_engine(new SyncEngine(
       ui_task_runner.get(), worker_task_runner.get(), drive_task_runner.get(),
       worker_pool.get(), GetSyncFileSystemDir(context->GetPath()), task_logger,
       notification_manager, extension_service, signin_manager, token_service,
       request_context.get(), base::WrapUnique(new DriveServiceFactory()),
       nullptr /* env_override */));
 
   sync_engine->Initialize();
   return sync_engine;
@@ skipping 567 matching lines @@
 
 SyncStatusCallback SyncEngine::TrackCallback(
     const SyncStatusCallback& callback) {
   return callback_tracker_.Register(
       base::Bind(callback, SYNC_STATUS_ABORT),
       callback);
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system