FWL refcounts never incremented (part 1)

xfa/include/fwl/core/fwl_target.h

 // Copyright 2014 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 FWL_TARGET_H_
 #define FWL_TARGET_H_
 
 #include "core/include/fxcrt/fx_basic.h"
 
 // FWL contains three parallel inheritance hierarchies, which reference each
 // other via pointers as follows:
 //
 //                                           m_pImpl
 //      (nonesuch)              IFWL_Target ----------> CFWL_TargetImp
 //                                   |                       |
 //                                   A                       A
-//                   m_pIface         |                       |
+//                   m_pIface        |                       |
 //      CFWL_Widget ----------> IFWL_Widget             CFWL_WidgetImp
 //           |                       |                       |
 //           A                       A                       A
 //           |                       |                       |
 //      CFWL_...                IFWL_...                CFWL_...Imp
 //
 
 class CFWL_TargetImp;
 
 class IFWL_Target {
  public:
   IFWL_Target() : m_pImpl(nullptr) {}
+  virtual ~IFWL_Target();
 
-  FX_DWORD Release();
-  IFWL_Target* Retain();
-  FX_DWORD GetRefCount() const;
   FWL_ERR GetClassName(CFX_WideString& wsClass) const;
   FX_DWORD GetClassID() const;
   FX_BOOL IsInstance(const CFX_WideStringC& wsClass) const;
   FWL_ERR Initialize();
   FWL_ERR Finalize();
 
   CFWL_TargetImp* GetImpl() const { return m_pImpl; }
   void SetImpl(CFWL_TargetImp* pImpl) { m_pImpl = pImpl; }
 
- protected:
-  virtual ~IFWL_Target();
-
  private:
   CFWL_TargetImp* m_pImpl;
 };
 
 #endif  // FWL_TARGET_H_