1 files changed, 27 insertions, 0 deletions
diff --git a/xpfe/appshell/LiveResizeListener.h b/xpfe/appshell/LiveResizeListener.h
new file mode 100644
index 0000000000..e878ad7d35
--- /dev/null
+++ b/xpfe/appshell/LiveResizeListener.h
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_LiveResizeListener_h
+#define mozilla_LiveResizeListener_h
+
+#include "nsISupportsImpl.h"
+
+namespace mozilla {
+
+class LiveResizeListener {
+ public:
+  virtual void LiveResizeStarted() = 0;
+  virtual void LiveResizeStopped() = 0;
+
+  NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
+
+ protected:
+  virtual ~LiveResizeListener() = default;
+};
+
+}  // namespace mozilla
+
+#endif  // mozilla_LiveResizeListener_h