Enable sync for the settings from the Extension Settings API.

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 17f978c7fa66c5ae8f0e4a29750d27d9892ef39a..8a75d1a6099d28273e5738e75ba84f38f2e9b154 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -506,7 +506,6 @@ void ProfileImpl::InitExtensions(bool extensions_enabled) {
       CommandLine::ForCurrentProcess(),
       GetPath().AppendASCII(ExtensionService::kInstallDirectoryName),
       extension_prefs_.get(),
-      extension_settings_.get(),
       autoupdate_enabled,
       extensions_enabled));
 
@@ -999,9 +998,6 @@ void ProfileImpl::OnPrefsLoaded(bool success) {
       GetPath().AppendASCII(ExtensionService::kInstallDirectoryName),
       GetExtensionPrefValueMap()));
 
-  extension_settings_ = new ExtensionSettings(
-      GetPath().AppendASCII(ExtensionService::kSettingsDirectoryName));
-
   ProfileDependencyManager::GetInstance()->CreateProfileServices(this, false);
 
   DCHECK(!net_pref_observer_.get());