[Sync] Rename syncable_prefs to sync_preferences.

ios/chrome/browser/browser_state/off_the_record_chrome_browser_state_impl.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 "ios/chrome/browser/browser_state/off_the_record_chrome_browser_state_impl.h"
 
 #include "base/logging.h"
 #include "components/keyed_service/ios/browser_state_dependency_manager.h"
 #include "components/proxy_config/pref_proxy_config_tracker.h"
-#include "components/syncable_prefs/pref_service_syncable.h"
+#include "components/sync_preferences/pref_service_syncable.h"
 #include "components/user_prefs/user_prefs.h"
 #include "ios/chrome/browser/application_context.h"
 #include "ios/chrome/browser/net/ios_chrome_url_request_context_getter.h"
 #include "ios/chrome/browser/net/proxy_service_factory.h"
 #include "ios/web/public/web_thread.h"
 
 OffTheRecordChromeBrowserStateImpl::OffTheRecordChromeBrowserStateImpl(
     ios::ChromeBrowserState* original_chrome_browser_state,
     const base::FilePath& otr_path)
     : otr_state_path_(otr_path),
       original_chrome_browser_state_(original_chrome_browser_state),
-      prefs_(static_cast<syncable_prefs::PrefServiceSyncable*>(
+      prefs_(static_cast<sync_preferences::PrefServiceSyncable*>(
           original_chrome_browser_state->GetOffTheRecordPrefs())) {
   user_prefs::UserPrefs::Set(this, GetPrefs());
   io_data_.reset(new OffTheRecordChromeBrowserStateIOData::Handle(this));
   BrowserStateDependencyManager::GetInstance()->CreateBrowserStateServices(
       this);
 }
 
 OffTheRecordChromeBrowserStateImpl::~OffTheRecordChromeBrowserStateImpl() {
   BrowserStateDependencyManager::GetInstance()->DestroyBrowserStateServices(
       this);
@@ skipping 78 matching lines @@
     web::WebThread::PostTask(web::WebThread::UI, FROM_HERE, completion);
   }
 }
 
 net::URLRequestContextGetter*
 OffTheRecordChromeBrowserStateImpl::CreateIsolatedRequestContext(
     const base::FilePath& partition_path) {
   NOTIMPLEMENTED();
   return nullptr;
 }