Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/extension_info_private_api_chromeos.cc

Index: chrome/browser/extensions/extension_info_private_api_chromeos.cc
diff --git a/chrome/browser/extensions/extension_info_private_api_chromeos.cc b/chrome/browser/extensions/extension_info_private_api_chromeos.cc
index 8224784bc497dbdc60792d760220dd809ca4e1d0..ec4e183ddae529d9358805bd8ee65fec74abb5fc 100644
--- a/chrome/browser/extensions/extension_info_private_api_chromeos.cc
+++ b/chrome/browser/extensions/extension_info_private_api_chromeos.cc
@@ -46,7 +46,7 @@ bool GetChromeosInfoFunction::RunImpl() {
     if (GetValue(property_name, &value))
       result->Set(property_name, Value::CreateStringValue(value));
   }
-  result_.reset(result.release());
+  SetSingleResult(result.release());
   SendResponse(true);
   return true;
 }