Change IFWL_Widget to store a single delegate.

xfa/fxfa/app/xfa_fftextedit.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 XFA_FXFA_APP_XFA_FFTEXTEDIT_H_
 #define XFA_FXFA_APP_XFA_FFTEXTEDIT_H_
 
 #include <vector>
@@ skipping 24 matching lines @@
   FX_BOOL Copy(CFX_WideString& wsCopy) override;
   FX_BOOL Cut(CFX_WideString& wsCut) override;
   FX_BOOL Paste(const CFX_WideString& wsPaste) override;
   FX_BOOL SelectAll() override;
   FX_BOOL Delete() override;
   FX_BOOL DeSelect() override;
   FX_BOOL GetSuggestWords(CFX_PointF pointf,
                           std::vector<CFX_ByteString>& sSuggest) override;
   FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
                                 const CFX_ByteStringC& bsReplace) override;
-  void OnProcessMessage(CFWL_Message* pMessage) override;
-  void OnProcessEvent(CFWL_Event* pEvent) override;
-  void OnDrawWidget(CFX_Graphics* pGraphics,
-                    const CFX_Matrix* pMatrix = nullptr) override;
 
   void OnTextChanged(IFWL_Widget* pWidget,
                      const CFX_WideString& wsChanged,
                      const CFX_WideString& wsPrevText);
   void OnTextFull(IFWL_Widget* pWidget);
   FX_BOOL CheckWord(const CFX_ByteStringC& sWord);
 
  protected:
   FX_BOOL CommitData() override;
   FX_BOOL UpdateFWLData() override;
   FX_BOOL IsDataChanged() override;
 
   uint32_t GetAlignment();
   void ValidateNumberField(const CFX_WideString& wsText);
-
-  IFWL_WidgetDelegate* m_pOldDelegate;
 };
 
 class CXFA_FFNumericEdit : public CXFA_FFTextEdit {
  public:
   CXFA_FFNumericEdit(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
   ~CXFA_FFNumericEdit() override;
 
   // CXFA_FFTextEdit
   FX_BOOL LoadWidget() override;
   void UpdateWidgetProperty() override;
-  void OnProcessEvent(CFWL_Event* pEvent) override;
 
  public:
   FX_BOOL OnValidate(IFWL_Widget* pWidget, CFX_WideString& wsText);
 };
 
 class CXFA_FFPasswordEdit : public CXFA_FFTextEdit {
  public:
   CXFA_FFPasswordEdit(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
   ~CXFA_FFPasswordEdit() override;
 
@@ skipping 29 matching lines @@
   FX_BOOL CanCopy() override;
   FX_BOOL CanCut() override;
   FX_BOOL CanPaste() override;
   FX_BOOL CanSelectAll() override;
   FX_BOOL Copy(CFX_WideString& wsCopy) override;
   FX_BOOL Cut(CFX_WideString& wsCut) override;
   FX_BOOL Paste(const CFX_WideString& wsPaste) override;
   FX_BOOL SelectAll() override;
   FX_BOOL Delete() override;
   FX_BOOL DeSelect() override;
-  void OnProcessEvent(CFWL_Event* pEvent) override;
 
   void OnSelectChanged(IFWL_Widget* pWidget,
                        int32_t iYear,
                        int32_t iMonth,
                        int32_t iDay);
 
  protected:
   FX_BOOL PtInActiveRect(FX_FLOAT fx, FX_FLOAT fy) override;
   FX_BOOL CommitData() override;
   FX_BOOL UpdateFWLData() override;
   FX_BOOL IsDataChanged() override;
 
   uint32_t GetAlignment();
 };
 
 #endif  // XFA_FXFA_APP_XFA_FFTEXTEDIT_H_