Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/cfwl_monthcalendar.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_FWL_CORE_IFWL_MONTHCALENDAR_H_
-#define XFA_FWL_CORE_IFWL_MONTHCALENDAR_H_
+#ifndef XFA_FWL_CORE_CFWL_MONTHCALENDAR_H_
+#define XFA_FWL_CORE_CFWL_MONTHCALENDAR_H_
 
 #include <memory>
 
 #include "xfa/fgas/localization/fgas_datetime.h"
 #include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_widgetproperties.h"
 #include "xfa/fwl/core/ifwl_widget.h"
 
 #define FWL_STYLEEXT_MCD_MultiSelect (1L << 0)
 #define FWL_STYLEEXT_MCD_NoToday (1L << 1)
 #define FWL_STYLEEXT_MCD_NoTodayCircle (1L << 2)
 #define FWL_STYLEEXT_MCD_WeekNumbers (1L << 3)
 #define FWL_ITEMSTATE_MCD_Nomal (0L << 0)
 #define FWL_ITEMSTATE_MCD_Flag (1L << 0)
 #define FWL_ITEMSTATE_MCD_Selected (1L << 1)
 #define FWL_ITEMSTATE_MCD_Focused (1L << 2)
 
 class CFWL_MsgMouse;
 class IFWL_Widget;
 
-class IFWL_MonthCalendar : public IFWL_Widget {
+class CFWL_MonthCalendar : public IFWL_Widget {
  public:
-  IFWL_MonthCalendar(const CFWL_App* app,
+  CFWL_MonthCalendar(const CFWL_App* app,
                      std::unique_ptr<CFWL_WidgetProperties> properties,
                      IFWL_Widget* pOuter);
-  ~IFWL_MonthCalendar() override;
+  ~CFWL_MonthCalendar() override;
 
   // FWL_WidgetImp
   FWL_Type GetClassID() const override;
   void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
   void Update() override;
   void DrawWidget(CFX_Graphics* pGraphics,
                   const CFX_Matrix* pMatrix = nullptr) override;
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix) override;
@@ skipping 173 matching lines @@
   FX_FLOAT m_fDateCellWid;
   FX_FLOAT m_fDateCellHei;
   FX_FLOAT m_fTodayWid;
   FX_FLOAT m_fTodayHei;
   FX_FLOAT m_fTodayFlagWid;
   FX_FLOAT m_fMCWid;
   FX_FLOAT m_fMCHei;
   bool m_bFlag;
 };
 
-#endif  // XFA_FWL_CORE_IFWL_MONTHCALENDAR_H_
+#endif  // XFA_FWL_CORE_CFWL_MONTHCALENDAR_H_