Added support for multiple parameters to Extension API callbacks.

chrome/browser/accessibility/accessibility_extension_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/accessibility/accessibility_extension_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/accessibility/accessibility_extension_api_constants.h"
@@ skipping 167 matching lines @@
 
 bool GetFocusedControlFunction::RunImpl() {
   // Get the serialized dict from the last focused control and return it.
   // However, if the dict is empty, that means we haven't seen any focus
   // events yet, so return null instead.
   ExtensionAccessibilityEventRouter *accessibility_event_router =
       ExtensionAccessibilityEventRouter::GetInstance();
   DictionaryValue *last_focused_control_dict =
       accessibility_event_router->last_focused_control_dict();
   if (last_focused_control_dict->size()) {
-    result_.reset(last_focused_control_dict->DeepCopyWithoutEmptyChildren());
+    SetResult(last_focused_control_dict->DeepCopyWithoutEmptyChildren());
   } else {
-    result_.reset(Value::CreateNullValue());
+    SetResult(Value::CreateNullValue());
   }
   return true;
 }
 
 bool GetAlertsForTabFunction::RunImpl() {
   int tab_id;
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &tab_id));
 
   TabStripModel* tab_strip = NULL;
   TabContents* contents = NULL;
@@ skipping 15 matching lines @@
     ConfirmInfoBarDelegate* confirm_infobar_delegate =
         infobar_delegate->AsConfirmInfoBarDelegate();
     if (confirm_infobar_delegate) {
       DictionaryValue* alert_value = new DictionaryValue;
       const string16 message_text = confirm_infobar_delegate->GetMessageText();
       alert_value->SetString(keys::kMessageKey, message_text);
       alerts_value->Append(alert_value);
     }
   }
 
-  result_.reset(alerts_value);
+  SetResult(alerts_value);
   return true;
 }