Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/toolkit/components/windowwatcher/nsIOpenWindowInfo.idl b/toolkit/components/windowwatcher/nsIOpenWindowInfo.idl
index a8347c5a1a..c0edb18536 100644
--- a/toolkit/components/windowwatcher/nsIOpenWindowInfo.idl
+++ b/toolkit/components/windowwatcher/nsIOpenWindowInfo.idl
@@ -74,4 +74,10 @@ interface nsIOpenWindowInfo : nsISupports {
   /* Callback to invoke when the browsing context for a new window is ready. */
   [notxpcom, nostdcall]
   nsIBrowsingContextReadyCallback browsingContextReadyCallback();
+
+  /**
+   * When creating a window fails, we will be called to notify an error via
+   * callback. If no callback, do nothing.
+   */
+  void cancel();
 };