1 files changed, 9 insertions, 3 deletions
diff --git a/editor/libeditor/EditorBase.h b/editor/libeditor/EditorBase.h
index dbd00771ef..8680b57ae4 100644
--- a/editor/libeditor/EditorBase.h
+++ b/editor/libeditor/EditorBase.h
@@ -987,11 +987,17 @@ protected:
   RefPtr<TextComposition> mComposition;
 
   // Listens to all low level actions on the doc.
-  nsTArray<OwningNonNull<nsIEditActionListener>> mActionListeners;
+  typedef AutoTArray<OwningNonNull<nsIEditActionListener>, 5>
+            AutoActionListenerArray;
+  AutoActionListenerArray mActionListeners;
   // Just notify once per high level change.
-  nsTArray<OwningNonNull<nsIEditorObserver>> mEditorObservers;
+  typedef AutoTArray<OwningNonNull<nsIEditorObserver>, 3>
+            AutoEditorObserverArray;
+  AutoEditorObserverArray mEditorObservers;
   // Listen to overall doc state (dirty or not, just created, etc.).
-  nsTArray<OwningNonNull<nsIDocumentStateListener>> mDocStateListeners;
+  typedef AutoTArray<OwningNonNull<nsIDocumentStateListener>, 1>
+            AutoDocumentStateListenerArray;
+  AutoDocumentStateListenerArray mDocStateListeners;
 
   // Cached selection for AutoSelectionRestorer.
   SelectionState mSavedSel;