Index: chrome/common/extensions/api/browser.idl |
diff --git a/chrome/common/extensions/api/browser.idl b/chrome/common/extensions/api/browser.idl |
index c429d5e1fbe3ee4ce88ddf28bb5843f1cbdfc7fc..e53c0eb785855a155b0455a2107bd578aca2272c 100644 |
--- a/chrome/common/extensions/api/browser.idl |
+++ b/chrome/common/extensions/api/browser.idl |
@@ -21,6 +21,6 @@ namespace browser { |
// |options| : The $(ref:OpenTabOptions) for this function. |
// |callback| : Called to indicate success or failure. |
static void openTab(OpenTabOptions options, |
- Callback callback); |
+ optional Callback callback); |
}; |
}; |