Merge the CFWL_*Imp classes into the IFWL_* classes.

xfa/fwl/core/fwl_formimp.h

Index: xfa/fwl/core/fwl_formimp.h
diff --git a/xfa/fwl/core/fwl_formimp.h b/xfa/fwl/core/fwl_formimp.h
deleted file mode 100644
index c88b5e683be6fefb807ac33983cc6ff2202c6aea..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/fwl_formimp.h
+++ /dev/null
@@ -1,181 +0,0 @@
-// 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_FWL_CORE_FWL_FORMIMP_H_
-#define XFA_FWL_CORE_FWL_FORMIMP_H_
-
-#include <memory>
-
-#include "xfa/fwl/core/fwl_widgetimp.h"
-#include "xfa/fwl/core/ifwl_form.h"
-
-class CFWL_MsgMouse;
-class CFWL_MsgClose;
-class CFWL_MsgWindowMove;
-class CFWL_NoteLoop;
-class CFWL_WidgetImpProperties;
-class IFWL_Widget;
-class IFWL_ThemeProvider;
-class CFWL_SysBtn;
-class CFWL_FormImp;
-class CFWL_FormImpDelegate;
-
-#define FWL_SYSBUTTONSTATE_Hover 0x0001
-#define FWL_SYSBUTTONSTATE_Pressed 0x0002
-#define FWL_SYSBUTTONSTATE_Disabled 0x0010
-
-class CFWL_SysBtn {
- public:
-  CFWL_SysBtn();
-
-  bool IsDisabled() const;
-  uint32_t GetPartState() const;
-
-  void SetNormal();
-  void SetPressed();
-  void SetHover();
-  void SetDisabled(FX_BOOL bDisabled);
-
-  CFX_RectF m_rtBtn;
-  uint32_t m_dwState;
-};
-
-enum FORM_RESIZETYPE {
-  FORM_RESIZETYPE_None = 0,
-  FORM_RESIZETYPE_Cap,
-};
-
-typedef struct RestoreResizeInfo {
-  RestoreResizeInfo();
-  ~RestoreResizeInfo();
-
-  CFX_PointF m_ptStart;
-  CFX_SizeF m_szStart;
-} RestoreInfo;
-
-class CFWL_FormImp : public CFWL_WidgetImp {
- public:
-  CFWL_FormImp(const CFWL_WidgetImpProperties& properties, IFWL_Widget* pOuter);
-  ~CFWL_FormImp() override;
-
-  // CFWL_WidgetImp
-  FWL_Error GetClassName(CFX_WideString& wsClass) const override;
-  FWL_Type GetClassID() const override;
-  FX_BOOL IsInstance(const CFX_WideStringC& wsClass) const override;
-  FWL_Error Initialize() override;
-  FWL_Error Finalize() override;
-
-  FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override;
-  FWL_Error GetClientRect(CFX_RectF& rect) override;
-  FWL_Error Update() override;
-  FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
-  FWL_Error DrawWidget(CFX_Graphics* pGraphics,
-                       const CFX_Matrix* pMatrix = nullptr) override;
-
-  FWL_FORMSIZE GetFormSize();
-  FWL_Error SetFormSize(FWL_FORMSIZE eFormSize);
-  IFWL_Widget* DoModal();
-  IFWL_Widget* DoModal(uint32_t& dwCommandID);
-  FWL_Error EndDoModal();
-  FWL_Error SetBorderRegion(CFX_Path* pPath);
-  void DrawBackground(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme);
-  CFWL_WidgetImp* GetSubFocus();
-  void SetSubFocus(CFWL_WidgetImp* pWidget);
-
- protected:
-  void ShowChildWidget(IFWL_Widget* pParent);
-  void RemoveSysButtons();
-  void CalcContentRect(CFX_RectF& rtContent);
-  CFWL_SysBtn* GetSysBtnAtPoint(FX_FLOAT fx, FX_FLOAT fy);
-  CFWL_SysBtn* GetSysBtnByState(uint32_t dwState);
-  CFWL_SysBtn* GetSysBtnByIndex(int32_t nIndex);
-  int32_t GetSysBtnIndex(CFWL_SysBtn* pBtn);
-  FX_FLOAT GetCaptionHeight();
-  void DrawCaptionText(CFX_Graphics* pGs,
-                       IFWL_ThemeProvider* pTheme,
-                       const CFX_Matrix* pMatrix = nullptr);
-  void DrawIconImage(CFX_Graphics* pGs,
-                     IFWL_ThemeProvider* pTheme,
-                     const CFX_Matrix* pMatrix = nullptr);
-  void GetEdgeRect(CFX_RectF& rtEdge);
-  void SetWorkAreaRect();
-  void SetCursor(FX_FLOAT fx, FX_FLOAT fy);
-  void Layout();
-  void ReSetSysBtn();
-  void RegisterForm();
-  void UnRegisterForm();
-  FX_BOOL IsDoModal();
-  void SetThemeData();
-  FX_BOOL HasIcon();
-  void UpdateIcon();
-  void UpdateCaption();
-  void DoWidthLimit(FX_FLOAT& fLeft,
-                    FX_FLOAT& fWidth,
-                    FX_FLOAT fCurX,
-                    FX_FLOAT fSpace,
-                    FX_FLOAT fLimitMin,
-                    FX_FLOAT fLimitMax,
-                    FX_BOOL bLeft);
-  void DoHeightLimit(FX_FLOAT& fTop,
-                     FX_FLOAT& fHeight,
-                     FX_FLOAT fCurY,
-                     FX_FLOAT fSpace,
-                     FX_FLOAT fLimitMin,
-                     FX_FLOAT fLimitMax,
-                     FX_BOOL bTop);
-
-  CFX_RectF m_rtRestore;
-  CFX_RectF m_rtCaptionText;
-  CFX_RectF m_rtRelative;
-  CFX_RectF m_rtCaption;
-  CFX_RectF m_rtIcon;
-  CFWL_SysBtn* m_pCloseBox;
-  CFWL_SysBtn* m_pMinBox;
-  CFWL_SysBtn* m_pMaxBox;
-  CFWL_SysBtn* m_pCaptionBox;
-  std::unique_ptr<CFWL_NoteLoop> m_pNoteLoop;
-  CFWL_WidgetImp* m_pSubFocus;
-  RestoreInfo m_InfoStart;
-  FX_FLOAT m_fCXBorder;
-  FX_FLOAT m_fCYBorder;
-  int32_t m_iCaptureBtn;
-  int32_t m_iSysBox;
-  int32_t m_eResizeType;
-  FX_BOOL m_bLButtonDown;
-  bool m_bMaximized;
-  FX_BOOL m_bSetMaximize;
-  FX_BOOL m_bCustomizeLayout;
-  FWL_FORMSIZE m_eFormSize;
-  FX_BOOL m_bDoModalFlag;
-  FX_FLOAT m_fSmallIconSz;
-  FX_FLOAT m_fBigIconSz;
-  CFX_DIBitmap* m_pBigIcon;
-  CFX_DIBitmap* m_pSmallIcon;
-  FX_BOOL m_bMouseIn;
-  friend class CFWL_FormImpDelegate;
-};
-
-class CFWL_FormImpDelegate : public CFWL_WidgetImpDelegate {
- public:
-  CFWL_FormImpDelegate(CFWL_FormImp* pOwner);
-  void OnProcessMessage(CFWL_Message* pMessage) override;
-  void OnProcessEvent(CFWL_Event* pEvent) override;
-  void OnDrawWidget(CFX_Graphics* pGraphics,
-                    const CFX_Matrix* pMatrix = nullptr) override;
-
- protected:
-  void OnLButtonDown(CFWL_MsgMouse* pMsg);
-  void OnLButtonUp(CFWL_MsgMouse* pMsg);
-  void OnMouseMove(CFWL_MsgMouse* pMsg);
-  void OnMouseHover(CFWL_MsgMouse* pMsg);
-  void OnMouseLeave(CFWL_MsgMouse* pMsg);
-  void OnLButtonDblClk(CFWL_MsgMouse* pMsg);
-  void OnWindowMove(CFWL_MsgWindowMove* pMsg);
-  void OnClose(CFWL_MsgClose* pMsg);
-  CFWL_FormImp* m_pOwner;
-};
-
-#endif  // XFA_FWL_CORE_FWL_FORMIMP_H_