Componentize PrefSyncableService and support classes.

chrome/browser/prefs/pref_metrics_service.cc

 // Copyright 2013 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/prefs/pref_metrics_service.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/prefs/pref_service_syncable.h"
 #include "chrome/browser/prefs/pref_service_syncable_util.h"
 #include "chrome/browser/prefs/session_startup_pref.h"
-#include "chrome/browser/prefs/synced_pref_change_registrar.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/tabs/pinned_tab_codec.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/rappor/rappor_utils.h"
 #include "components/search_engines/template_url_prepopulate_data.h"
+#include "components/syncable_prefs/pref_service_syncable.h"
+#include "components/syncable_prefs/synced_pref_change_registrar.h"
 #include "content/public/browser/browser_url_handler.h"
 #include "crypto/hmac.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 
 namespace {
 
 const int kSessionStartupPrefValueMax = SessionStartupPref::kPrefValueMax;
 
 // Record a sample for the Settings.NewTabPage rappor metric.
 void SampleNewTabPageURL(Profile* profile) {
@@ skipping 206 matching lines @@
 }
 
 bool PrefMetricsService::Factory::ServiceIsNULLWhileTesting() const {
   return false;
 }
 
 content::BrowserContext* PrefMetricsService::Factory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }