Move xfa/src up to xfa/.

xfa/src/fxfa/app/xfa_ffsignature.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_FXFA_APP_XFA_FFSIGNATURE_H_
-#define XFA_SRC_FXFA_APP_XFA_FFSIGNATURE_H_
-
-#include "xfa/src/fxfa/app/xfa_fffield.h"
-
-class CXFA_FFSignature final : public CXFA_FFField {
- public:
-  CXFA_FFSignature(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
-  virtual ~CXFA_FFSignature();
-
-  virtual void RenderWidget(CFX_Graphics* pGS,
-                            CFX_Matrix* pMatrix = NULL,
-                            FX_DWORD dwStatus = 0,
-                            int32_t iRotate = 0);
-  virtual FX_BOOL LoadWidget();
-  virtual FX_BOOL OnMouseEnter();
-  virtual FX_BOOL OnMouseExit();
-  virtual FX_BOOL OnLButtonDown(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnLButtonUp(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnLButtonDblClk(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnMouseMove(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnMouseWheel(FX_DWORD dwFlags,
-                               int16_t zDelta,
-                               FX_FLOAT fx,
-                               FX_FLOAT fy);
-  virtual FX_BOOL OnRButtonDown(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnRButtonUp(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnRButtonDblClk(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-
-  virtual FX_BOOL OnKeyDown(FX_DWORD dwKeyCode, FX_DWORD dwFlags);
-  virtual FX_BOOL OnKeyUp(FX_DWORD dwKeyCode, FX_DWORD dwFlags);
-  virtual FX_BOOL OnChar(FX_DWORD dwChar, FX_DWORD dwFlags);
-  virtual FX_DWORD OnHitTest(FX_FLOAT fx, FX_FLOAT fy);
-  virtual FX_BOOL OnSetCursor(FX_FLOAT fx, FX_FLOAT fy);
-};
-
-#endif  // XFA_SRC_FXFA_APP_XFA_FFSIGNATURE_H_