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

components/data_reduction_proxy/core/browser/data_reduction_proxy_service.cc

 // 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.
 
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/prefs/pref_service.h"
 #include "base/sequenced_task_runner.h"
 #include "base/task_runner_util.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_compression_stats.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_service_observer.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
 #include "components/data_reduction_proxy/core/browser/data_store.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_event_store.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_pref_names.h"
 #include "components/data_reduction_proxy/proto/data_store.pb.h"
-#include "components/prefs/pref_service.h"
 
 namespace data_reduction_proxy {
 
 DataReductionProxyService::DataReductionProxyService(
     DataReductionProxySettings* settings,
     PrefService* prefs,
     net::URLRequestContextGetter* request_context_getter,
     scoped_ptr<DataStore> store,
     const scoped_refptr<base::SequencedTaskRunner>& ui_task_runner,
     const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
@@ skipping 285 matching lines @@
   return initialized_;
 }
 
 base::WeakPtr<DataReductionProxyService>
 DataReductionProxyService::GetWeakPtr() {
   DCHECK(CalledOnValidThread());
   return weak_factory_.GetWeakPtr();
 }
 
 }  // namespace data_reduction_proxy