Unused FWL Classes.

xfa/fwl/core/ifwl_custom.h

Index: xfa/fwl/core/ifwl_custom.h
diff --git a/xfa/fwl/core/ifwl_custom.h b/xfa/fwl/core/ifwl_custom.h
deleted file mode 100644
index d7f1b40923ee42ef7edf3a8b7e527ef31c408b08..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_custom.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef XFA_FWL_CORE_IFWL_CUSTOM_H_
-#define XFA_FWL_CORE_IFWL_CUSTOM_H_
-
-#include "xfa/fwl/core/fwl_error.h"
-#include "xfa/fwl/core/ifwl_widget.h"
-
-class IFWL_Proxy;
-
-class IFWL_Custom : public IFWL_Widget {
- public:
-  static IFWL_Custom* Create(const CFWL_WidgetImpProperties& properties,
-                             IFWL_Widget* pOuter);
-
-  FWL_ERR SetProxy(IFWL_Proxy* pProxy);
-
- protected:
-  IFWL_Custom();
-};
-
-#endif  // XFA_FWL_CORE_IFWL_CUSTOM_H_