Bug 1698668 - Add a standaloneNativeMenu.dump() method that can be called from a test for debugging purposes. r=harry

Depends on D108555

Differential Revision: https://phabricator.services.mozilla.com/D108729

widget/cocoa/nsStandaloneNativeMenu.mm

@@ -189,3 +189,15 @@ void nsStandaloneNativeMenu::SetContainerStatusBarItem(NSStatusItem* aItem) {
   mContainerStatusBarItem = aItem;
   IconUpdated();
 }
+
+NS_IMETHODIMP
+nsStandaloneNativeMenu::Dump() {
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+
+  mMenu->Dump(0);
+  nsMenuUtilsX::DumpNativeMenu(mMenu->NativeNSMenu());
+
+  return NS_OK;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK;
+}

widget/nsIStandaloneNativeMenu.idl

@@ -53,4 +53,11 @@ interface nsIStandaloneNativeMenu : nsISupports
    *        pipe ('|') characters
    */
   void forceUpdateNativeMenuAt(in AString anIndexString);
+
+
+  /**
+   * Print information about the menu structure to stdout. Only used for
+   * debugging.
+   */
+  void dump();
 };