Enable sync for the settings from the Extension Settings API.

chrome/browser/profiles/profile_impl.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/profiles/profile_impl.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/environment.h"
 #include "base/file_path.h"
@@ skipping 477 matching lines @@
   if (!extensions_enabled)
     autoupdate_enabled = false;
   else
     autoupdate_enabled = !command_line->HasSwitch(switches::kGuestSession);
 #endif
   extension_service_.reset(new ExtensionService(
       this,
       CommandLine::ForCurrentProcess(),
       GetPath().AppendASCII(ExtensionService::kInstallDirectoryName),
       extension_prefs_.get(),
-      extension_settings_.get(),
       autoupdate_enabled,
       extensions_enabled));
 
   RegisterComponentExtensions();
   extension_service_->Init();
 
   if (extensions_enabled) {
     // Load any extensions specified with --load-extension.
     if (command_line->HasSwitch(switches::kLoadExtension)) {
       FilePath path = command_line->GetSwitchValuePath(
@@ skipping 411 matching lines @@
   // Make sure we save to disk that the session has opened.
   prefs_->ScheduleSavePersistentPrefs();
 
   // Ensure that preferences set by extensions are restored in the profile
   // as early as possible. The constructor takes care of that.
   extension_prefs_.reset(new ExtensionPrefs(
       prefs_.get(),
       GetPath().AppendASCII(ExtensionService::kInstallDirectoryName),
       GetExtensionPrefValueMap()));
 
-  extension_settings_ = new ExtensionSettings(
-      GetPath().AppendASCII(ExtensionService::kSettingsDirectoryName));
-
   ProfileDependencyManager::GetInstance()->CreateProfileServices(this, false);
 
   DCHECK(!net_pref_observer_.get());
   net_pref_observer_.reset(
       new NetPrefObserver(prefs_.get(), GetPrerenderManager(), predictor_));
 
   DoFinalInit();
 }
 
 PrefService* ProfileImpl::GetPrefs() {
@@ skipping 810 matching lines @@
 
 chrome_browser_net::Predictor* ProfileImpl::GetNetworkPredictor() {
   return predictor_;
 }
 
 SpellCheckProfile* ProfileImpl::GetSpellCheckProfile() {
   if (!spellcheck_profile_.get())
     spellcheck_profile_.reset(new SpellCheckProfile());
   return spellcheck_profile_.get();
 }