Remove CFWL_Note.

xfa/fwl/core/cfwl_note.h

-// 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_CFWL_NOTE_H_
-#define XFA_FWL_CORE_CFWL_NOTE_H_
-
-#include "core/fxcrt/include/fx_string.h"
-#include "core/fxcrt/include/fx_system.h"
-#include "xfa/fwl/core/fwl_error.h"
-
-class IFWL_Widget;
-
-// Separate hierarchy not related to IFWL_* hierarchy. These should not
-// get cast to IFWL_* types.
-class CFWL_Note {
- public:
-  virtual uint32_t Release() {
-    m_dwRefCount--;
-    uint32_t dwRefCount = m_dwRefCount;
-    if (!m_dwRefCount)
-      delete this;
-    return dwRefCount;
-  }
-
-  virtual CFWL_Note* Retain() {
-    m_dwRefCount++;
-    return this;
-  }
-
-  virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const {
-    wsClass = L"CFWL_Note";
-    return FWL_ERR_Succeeded;
-  }
-
-  virtual uint32_t GetClassID() const { return 0; }
-
-  virtual FX_BOOL IsInstance(const CFX_WideStringC& wsClass) const {
-    return TRUE;
-  }
-
-  virtual CFWL_Note* Clone() { return NULL; }
-  FX_BOOL IsEvent() const { return m_bIsEvent; }
-
-  IFWL_Widget* m_pSrcTarget;
-  IFWL_Widget* m_pDstTarget;
-  uint32_t m_dwExtend;
-
- protected:
-  CFWL_Note(FX_BOOL bIsEvent)
-      : m_pSrcTarget(NULL),
-        m_pDstTarget(NULL),
-        m_dwExtend(0),
-        m_dwRefCount(1),
-        m_bIsEvent(bIsEvent) {}
-
-  virtual ~CFWL_Note() {}
-  virtual FX_BOOL Initialize() { return TRUE; }
-  virtual int32_t Finalize() { return 0; }
-
-  uint32_t m_dwRefCount;
-  FX_BOOL m_bIsEvent;
-};
-
-#endif  // XFA_FWL_CORE_CFWL_NOTE_H_