Move xfa/src up to xfa/.

xfa/src/fee/ifde_txtedtbuf.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_SRC_FEE_IFDE_TXTEDTBUF_H_
-#define XFA_SRC_FEE_IFDE_TXTEDTBUF_H_
-
-#include "core/include/fxcrt/fx_basic.h"
-
-#define FDE_DEFCHUNKLENGTH (1024)
-
-class IFDE_TxtEdtBuf {
- public:
-  virtual ~IFDE_TxtEdtBuf() {}
-  virtual void Release() = 0;
-
-  virtual FX_BOOL SetChunkSize(int32_t nChunkSize) = 0;
-  virtual int32_t GetChunkSize() const = 0;
-  virtual int32_t GetTextLength() const = 0;
-  virtual void SetText(const CFX_WideString& wsText) = 0;
-  virtual void GetText(CFX_WideString& wsText) const = 0;
-  virtual FX_WCHAR GetCharByIndex(int32_t nIndex) const = 0;
-  virtual void GetRange(CFX_WideString& wsText,
-                        int32_t nBegin,
-                        int32_t nCount = -1) const = 0;
-
-  virtual void Insert(int32_t nPos,
-                      const FX_WCHAR* lpText,
-                      int32_t nLength = 1) = 0;
-  virtual void Delete(int32_t nIndex, int32_t nLength = 1) = 0;
-
-  virtual void Clear(FX_BOOL bRelease = TRUE) = 0;
-
-  virtual FX_BOOL Optimize(IFX_Pause* pPause = NULL) = 0;
-};
-
-#endif  // XFA_SRC_FEE_IFDE_TXTEDTBUF_H_