Remove DrivePrefetcher and relevant flags.

chrome/browser/chromeos/drive/drive_system_service.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/chromeos/drive/drive_system_service.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/drive/download_handler.h"
 #include "chrome/browser/chromeos/drive/drive_cache.h"
 #include "chrome/browser/chromeos/drive/drive_file_system.h"
-#include "chrome/browser/chromeos/drive/drive_prefetcher.h"
 #include "chrome/browser/chromeos/drive/drive_webapps_registry.h"
 #include "chrome/browser/chromeos/drive/file_system_proxy.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/file_write_helper.h"
 #include "chrome/browser/chromeos/drive/logging.h"
 #include "chrome/browser/chromeos/drive/stale_cache_files_remover.h"
 #include "chrome/browser/chromeos/drive/sync_client.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/download/download_util.h"
@@ skipping 118 matching lines @@
                                          cache(),
                                          drive_service_.get(),
                                          scheduler_.get(),
                                          webapps_registry(),
                                          resource_metadata_.get(),
                                          blocking_task_runner_));
   file_write_helper_.reset(new FileWriteHelper(file_system()));
   download_handler_.reset(new DownloadHandler(file_write_helper(),
                                               file_system()));
   sync_client_.reset(new SyncClient(file_system(), cache()));
-  prefetcher_.reset(new DrivePrefetcher(file_system(),
-                                        DrivePrefetcherOptions()));
   stale_cache_files_remover_.reset(new StaleCacheFilesRemover(file_system(),
                                                               cache()));
 }
 
 DriveSystemService::~DriveSystemService() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void DriveSystemService::Initialize() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
@@ skipping 303 matching lines @@
   if (factory_for_test_.is_null())
     service = new DriveSystemService(profile, NULL, base::FilePath(), NULL);
   else
     service = factory_for_test_.Run(profile);
 
   service->Initialize();
   return service;
 }
 
 }  // namespace drive