Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/ifwl_comboedit.cpp

-// Copyright 2016 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_comboedit.h"
-
-#include <memory>
-#include <utility>
-
-#include "xfa/fde/cfde_txtedtengine.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/ifwl_combobox.h"
-
-IFWL_ComboEdit::IFWL_ComboEdit(
-    const CFWL_App* app,
-    std::unique_ptr<CFWL_WidgetProperties> properties,
-    IFWL_Widget* pOuter)
-    : IFWL_Edit(app, std::move(properties), pOuter) {
-  m_pOuter = static_cast<IFWL_ComboBox*>(pOuter);
-}
-
-void IFWL_ComboEdit::ClearSelected() {
-  ClearSelections();
-  Repaint(&GetRTClient());
-}
-
-void IFWL_ComboEdit::SetSelected() {
-  FlagFocus(true);
-  GetTxtEdtEngine()->MoveCaretPos(MC_End);
-  AddSelRange(0);
-}
-
-void IFWL_ComboEdit::FlagFocus(bool bSet) {
-  if (bSet) {
-    m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
-    return;
-  }
-
-  m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
-  ShowCaret(false);
-}
-
-void IFWL_ComboEdit::OnProcessMessage(CFWL_Message* pMessage) {
-  if (!pMessage)
-    return;
-
-  bool backDefault = true;
-  switch (pMessage->GetClassID()) {
-    case CFWL_MessageType::SetFocus: {
-      m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
-      backDefault = false;
-      break;
-    }
-    case CFWL_MessageType::KillFocus: {
-      m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
-      backDefault = false;
-      break;
-    }
-    case CFWL_MessageType::Mouse: {
-      CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
-      if ((pMsg->m_dwCmd == FWL_MouseCommand::LeftButtonDown) &&
-          ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)) {
-        SetSelected();
-        m_pOuter->SetFocus(true);
-      }
-      break;
-    }
-    default:
-      break;
-  }
-  if (backDefault)
-    IFWL_Edit::OnProcessMessage(pMessage);
-}