Introduce //components/user_prefs, use to eliminate c/b/prefs dependency in Autofill.

chrome/browser/download/chrome_download_manager_delegate.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/download/chrome_download_manager_delegate.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 18 matching lines @@
 #include "chrome/browser/download/download_status_updater.h"
 #include "chrome/browser/download/download_util.h"
 #include "chrome/browser/download/save_package_file_picker.h"
 #include "chrome/browser/extensions/api/downloads/downloads_api.h"
 #include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/platform_util.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/feature_switch.h"
 #include "chrome/common/extensions/user_script.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "grit/generated_resources.h"
 #include "net/base/net_util.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if !defined(OS_ANDROID)
@@ skipping 842 matching lines @@
     // TODO(asanka): This logic is a hack. DownloadFilePicker should give us a
     //               directory to persist. Or perhaps, if the Drive path
     //               substitution logic is moved here, then we would have a
     //               persistable path after the DownloadFilePicker is done.
     if (disposition == DownloadItem::TARGET_DISPOSITION_PROMPT &&
         !download->IsTemporary())
       last_download_path_ = target_path.DirName();
   }
   callback.Run(target_path, disposition, danger_type, intermediate_path);
 }