Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/ifwl_datetimepicker.cpp

 // 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
 
 #include "xfa/fwl/core/ifwl_datetimepicker.h"
 
 #include <memory>
 #include <utility>
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_evteditchanged.h"
 #include "xfa/fwl/core/cfwl_evtselectchanged.h"
+#include "xfa/fwl/core/cfwl_formproxy.h"
 #include "xfa/fwl/core/cfwl_msgmouse.h"
 #include "xfa/fwl/core/cfwl_msgsetfocus.h"
 #include "xfa/fwl/core/cfwl_notedriver.h"
+#include "xfa/fwl/core/cfwl_spinbutton.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_widgetmgr.h"
-#include "xfa/fwl/core/ifwl_formproxy.h"
-#include "xfa/fwl/core/ifwl_spinbutton.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 namespace {
 
 const int kDateTimePickerWidth = 100;
 const int kDateTimePickerHeight = 20;
 
 }  // namespace
 
 IFWL_DateTimePicker::IFWL_DateTimePicker(
     const CFWL_App* app,
     std::unique_ptr<CFWL_WidgetProperties> properties)
     : IFWL_Widget(app, std::move(properties), nullptr),
       m_iBtnState(1),
       m_iYear(-1),
       m_iMonth(-1),
       m_iDay(-1),
       m_bLBtnDown(false) {
   m_rtBtn.Set(0, 0, 0, 0);
 
   m_pProperties->m_dwStyleExes = FWL_STYLEEXT_DTP_ShortDateFormat;
 
   auto monthProp = pdfium::MakeUnique<CFWL_WidgetProperties>();
   monthProp->m_dwStyles = FWL_WGTSTYLE_Popup | FWL_WGTSTYLE_Border;
   monthProp->m_dwStates = FWL_WGTSTATE_Invisible;
   monthProp->m_pParent = this;
   monthProp->m_pThemeProvider = m_pProperties->m_pThemeProvider;
   m_pMonthCal.reset(
-      new IFWL_MonthCalendar(m_pOwnerApp, std::move(monthProp), this));
+      new CFWL_MonthCalendar(m_pOwnerApp, std::move(monthProp), this));
 
   CFX_RectF rtMonthCal;
   m_pMonthCal->GetWidgetRect(rtMonthCal, true);
   rtMonthCal.Set(0, 0, rtMonthCal.width, rtMonthCal.height);
   m_pMonthCal->SetWidgetRect(rtMonthCal);
 
   auto editProp = pdfium::MakeUnique<CFWL_WidgetProperties>();
   editProp->m_pParent = this;
   editProp->m_pThemeProvider = m_pProperties->m_pThemeProvider;
 
-  m_pEdit.reset(new IFWL_DateTimeEdit(m_pOwnerApp, std::move(editProp), this));
+  m_pEdit.reset(new CFWL_DateTimeEdit(m_pOwnerApp, std::move(editProp), this));
   RegisterEventTarget(m_pMonthCal.get());
   RegisterEventTarget(m_pEdit.get());
 }
 
 IFWL_DateTimePicker::~IFWL_DateTimePicker() {
   UnregisterEventTarget();
 }
 
 FWL_Type IFWL_DateTimePicker::GetClassID() const {
   return FWL_Type::DateTimePicker;
@@ skipping 292 matching lines @@
   if (m_pForm)
     return;
   if (!m_pMonthCal)
     return;
 
   auto prop = pdfium::MakeUnique<CFWL_WidgetProperties>();
   prop->m_dwStyles = FWL_WGTSTYLE_Popup;
   prop->m_dwStates = FWL_WGTSTATE_Invisible;
   prop->m_pOwner = this;
 
-  m_pForm = pdfium::MakeUnique<IFWL_FormProxy>(m_pOwnerApp, std::move(prop),
+  m_pForm = pdfium::MakeUnique<CFWL_FormProxy>(m_pOwnerApp, std::move(prop),
                                                m_pMonthCal.get());
   m_pMonthCal->SetParent(m_pForm.get());
 }
 
 bool IFWL_DateTimePicker::DisForm_IsMonthCalendarVisible() const {
   if (!m_pMonthCal)
     return false;
   return !(m_pMonthCal->GetStates() & FWL_WGTSTATE_Invisible);
 }
 
@@ skipping 267 matching lines @@
     if (DisForm_IsMonthCalendarVisible())
       ShowMonthCalendar(false);
     if (m_pEdit->GetStates() & FWL_WGTSTATE_Focused) {
       pMsg->m_pSrcTarget = m_pEdit.get();
       m_pEdit->GetDelegate()->OnProcessMessage(pMsg);
     }
   }
   rtInvalidate.Inflate(2, 2);
   Repaint(&rtInvalidate);
 }