Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/api/dns/dns_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/extensions/api/dns/dns_api.h"
 
 #include "base/bind.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/dns/host_resolver_wrapper.h"
@@ skipping 67 matching lines @@
 
 void DnsResolveFunction::OnLookupFinished(int resolve_result) {
   scoped_ptr<ResolveCallbackResolveInfo> resolve_info(
       new ResolveCallbackResolveInfo());
   resolve_info->result_code = resolve_result;
   if (resolve_result == net::OK) {
     DCHECK(!addresses_->empty());
     resolve_info->address.reset(
         new std::string(addresses_->front().ToStringWithoutPort()));
   }
-  result_.reset(Resolve::Result::Create(*resolve_info));
+  SetResult(Resolve::Result::Create(*resolve_info));
   response_ = true;
 
   bool post_task_result = BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&DnsResolveFunction::RespondOnUIThread, this));
   DCHECK(post_task_result);
 
   Release();  // Added in WorkOnIOThread().
 }
 
 }  // namespace extensions