Refactor preference syncing.

chrome/browser/instant/instant_controller.cc

 // Copyright (c) 2011 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/instant/instant_controller.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "build/build_config.h"
@@ skipping 40 matching lines @@
     // it is correctly set.
     service->SetBoolean(prefs::kInstantEnabledOnce, true);
   }
 }
 
 InstantController::~InstantController() {
 }
 
 // static
 void InstantController::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterBooleanPref(prefs::kInstantConfirmDialogShown, false);
-  prefs->RegisterBooleanPref(prefs::kInstantEnabled, false);
-  prefs->RegisterBooleanPref(prefs::kInstantEnabledOnce, false);
-  prefs->RegisterInt64Pref(prefs::kInstantEnabledTime, false);
+  prefs->RegisterBooleanPref(prefs::kInstantConfirmDialogShown,
+                             false,
+                             false /* don't sync pref */);
+  prefs->RegisterBooleanPref(prefs::kInstantEnabled,
+                             false,
+                             false /* don't sync pref */);
+  prefs->RegisterBooleanPref(prefs::kInstantEnabledOnce,
+                             false,
+                             false /* don't sync pref */);
+  prefs->RegisterInt64Pref(prefs::kInstantEnabledTime,
+                           false,
+                           false /* don't sync pref */);
   PromoCounter::RegisterUserPrefs(prefs, prefs::kInstantPromo);
 }
 
 // static
 void InstantController::RecordMetrics(Profile* profile) {
   if (!IsEnabled(profile))
     return;
 
   PrefService* service = profile->GetPrefs();
   if (service) {
@@ skipping 602 matching lines @@
     const AutocompleteMatch& match) {
   const TemplateURL* template_url = match.template_url;
   if (match.type == AutocompleteMatch::SEARCH_WHAT_YOU_TYPED ||
       match.type == AutocompleteMatch::SEARCH_HISTORY ||
       match.type == AutocompleteMatch::SEARCH_SUGGEST) {
     TemplateURLModel* model = tab_contents_->profile()->GetTemplateURLModel();
     template_url = model ? model->GetDefaultSearchProvider() : NULL;
   }
   return template_url;
 }