Remove IFDE_TxtEdt interfaces where possible.

xfa/fee/fde_txtedtpage.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_FEE_FDE_TXTEDTPAGE_H_
 #define XFA_FEE_FDE_TXTEDTPAGE_H_
 
 #include "core/fxcrt/include/fx_coordinates.h"
@@ skipping 79 matching lines @@
   virtual int32_t GetCharRects_Impl(FDE_HVISUALOBJ hText,
                                     CFX_RectFArray& rtArray,
                                     FX_BOOL bBBox = FALSE);
 
  private:
   CFDE_TxtEdtPage* m_pPage;
 };
 
 class CFDE_TxtEdtPage : public IFDE_TxtEdtPage {
  public:
-  CFDE_TxtEdtPage(IFDE_TxtEdtEngine* pEngine, int32_t nLineIndex);
+  CFDE_TxtEdtPage(CFDE_TxtEdtEngine* pEngine, int32_t nLineIndex);
 
   // IFDE_TxtEditPage:
   void Release() override;
-  IFDE_TxtEdtEngine* GetEngine() const override;
+  CFDE_TxtEdtEngine* GetEngine() const override;
   int32_t GetCharRect(int32_t nIndex,
                       CFX_RectF& rect,
                       FX_BOOL bBBox = FALSE) const override;
   int32_t GetCharIndex(const CFX_PointF& fPoint, FX_BOOL& bBefore) override;
   void CalcRangeRectArray(int32_t nStart,
                           int32_t nCount,
                           CFX_RectFArray& RectFArr) const override;
   int32_t SelectWord(const CFX_PointF& fPoint, int32_t& nCount) override;
   int32_t GetCharStart() const override;
   int32_t GetCharCount() const override;
@@ skipping 44 matching lines @@
   int32_t m_nPageIndex;
   FX_BOOL m_bLoaded;
   CFX_RectF m_rtPage;
   CFX_RectF m_rtPageMargin;
   CFX_RectF m_rtPageContents;
   CFX_RectF m_rtPageCanvas;
   int32_t* m_pCharWidth;
 };
 
 #endif  // XFA_FEE_FDE_TXTEDTPAGE_H_