[Extensions] Convert some SyncExtensionFunctions

chrome/browser/chromeos/extensions/info_private_api.cc

 // Copyright (c) 2012 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/chromeos/extensions/info_private_api.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 220 matching lines @@
   DLOG(ERROR) << "Unknown property request: " << property_name;
   return NULL;
 }
 
 ChromeosInfoPrivateSetFunction::ChromeosInfoPrivateSetFunction() {
 }
 
 ChromeosInfoPrivateSetFunction::~ChromeosInfoPrivateSetFunction() {
 }
 
-bool ChromeosInfoPrivateSetFunction::RunSync() {
+ExtensionFunction::ResponseAction ChromeosInfoPrivateSetFunction::Run() {
   std::string param_name;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &param_name));
   if (param_name == kPropertyTimezone) {
     std::string param_value;
     EXTENSION_FUNCTION_VALIDATE(args_->GetString(1, &param_value));
     chromeos::CrosSettings::Get()->Set(chromeos::kSystemTimezone,
                                        base::StringValue(param_value));
   } else {
     const char* pref_name = GetBoolPrefNameForApiProperty(param_name.c_str());
     if (pref_name) {
       bool param_value;
       EXTENSION_FUNCTION_VALIDATE(args_->GetBoolean(1, &param_value));
       Profile::FromBrowserContext(context_)->GetPrefs()->SetBoolean(
           pref_name,
           param_value);
     } else {
-      error_ = ErrorUtils::FormatErrorMessage(kPropertyNotFound, param_name);
-      return false;
+      return RespondNow(Error(kPropertyNotFound, param_name));
     }
   }
 
-  return true;
+  return RespondNow(NoArguments());
 }
 
 }  // namespace extensions