Revert of Delete base/prefs and update callers to use components.

ios/chrome/browser/browsing_data/ios_chrome_browsing_data_remover.h

 // Copyright 2015 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.
 
 #ifndef IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_
 #define IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_
 
 #include <set>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
+#include "base/prefs/pref_member.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
-#include "components/prefs/pref_member.h"
 #include "components/search_engines/template_url_service.h"
 #include "url/gurl.h"
 #include "url/origin.h"
 
 namespace ios {
 class ChromeBrowserState;
 }
 
 namespace net {
 class URLRequestContextGetter;
@@ skipping 234 matching lines @@
 
   // Used if we need to clear history.
   base::CancelableTaskTracker history_task_tracker_;
 
   scoped_ptr<TemplateURLService::Subscription> template_url_sub_;
 
   DISALLOW_COPY_AND_ASSIGN(IOSChromeBrowsingDataRemover);
 };
 
 #endif  // IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_