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

components/content_settings/core/browser/content_settings_pref_provider.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 "components/content_settings/core/browser/content_settings_pref_provider.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <string>
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/prefs/pref_registry.h"
+#include "base/prefs/pref_service.h"
+#include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/string_split.h"
 #include "base/time/clock.h"
 #include "base/time/default_clock.h"
 #include "components/content_settings/core/browser/content_settings_pref.h"
 #include "components/content_settings/core/browser/content_settings_rule.h"
 #include "components/content_settings/core/browser/content_settings_utils.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/browser/website_settings_info.h"
 #include "components/content_settings/core/browser/website_settings_registry.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/content_settings/core/common/content_settings_pattern.h"
 #include "components/content_settings/core/common/pref_names.h"
 #include "components/pref_registry/pref_registry_syncable.h"
-#include "components/prefs/pref_registry.h"
-#include "components/prefs/pref_service.h"
-#include "components/prefs/scoped_user_pref_update.h"
 
 namespace {
 
 // Obsolete prefs.
 // TODO(msramek): Remove the cleanup code after two releases (i.e. in M50).
 const char kObsoleteMetroSwitchToDesktopExceptions[] =
     "profile.content_settings.exceptions.metro_switch_to_desktop";
 
 const char kObsoleteMediaStreamExceptions[] =
     "profile.content_settings.exceptions.media_stream";
@@ skipping 165 matching lines @@
                   content_type,
                   resource_identifier);
 }
 
 void PrefProvider::DiscardObsoletePreferences() {
   prefs_->ClearPref(kObsoleteMetroSwitchToDesktopExceptions);
   prefs_->ClearPref(kObsoleteMediaStreamExceptions);
 }
 
 }  // namespace content_settings