Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/ifwl_comboboxproxy.cpp

Index: xfa/fwl/core/ifwl_comboboxproxy.cpp
diff --git a/xfa/fwl/core/ifwl_comboboxproxy.cpp b/xfa/fwl/core/ifwl_comboboxproxy.cpp
deleted file mode 100644
index 35c8a0e025c5c8573fd11ea8af093afee921ba77..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_comboboxproxy.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-// 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_comboboxproxy.h"
-
-#include <memory>
-#include <utility>
-
-#include "xfa/fwl/core/cfwl_app.h"
-#include "xfa/fwl/core/cfwl_msgkillfocus.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fwl/core/ifwl_combobox.h"
-
-IFWL_ComboBoxProxy::IFWL_ComboBoxProxy(
-    IFWL_ComboBox* pComboBox,
-    const CFWL_App* app,
-    std::unique_ptr<CFWL_WidgetProperties> properties,
-    IFWL_Widget* pOuter)
-    : IFWL_FormProxy(app, std::move(properties), pOuter),
-      m_bLButtonDown(false),
-      m_bLButtonUpSelf(false),
-      m_pComboBox(pComboBox) {}
-
-IFWL_ComboBoxProxy::~IFWL_ComboBoxProxy() {}
-
-void IFWL_ComboBoxProxy::OnProcessMessage(CFWL_Message* pMessage) {
-  if (!pMessage)
-    return;
-
-  switch (pMessage->GetClassID()) {
-    case CFWL_MessageType::Mouse: {
-      CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
-      switch (pMsg->m_dwCmd) {
-        case FWL_MouseCommand::LeftButtonDown:
-          OnLButtonDown(pMsg);
-          break;
-        case FWL_MouseCommand::LeftButtonUp:
-          OnLButtonUp(pMsg);
-          break;
-        default:
-          break;
-      }
-      break;
-    }
-    case CFWL_MessageType::KillFocus:
-      OnFocusChanged(pMessage, false);
-      break;
-    case CFWL_MessageType::SetFocus:
-      OnFocusChanged(pMessage, true);
-      break;
-    default:
-      break;
-  }
-  IFWL_Widget::OnProcessMessage(pMessage);
-}
-
-void IFWL_ComboBoxProxy::OnDrawWidget(CFX_Graphics* pGraphics,
-                                      const CFX_Matrix* pMatrix) {
-  m_pComboBox->DrawStretchHandler(pGraphics, pMatrix);
-}
-
-void IFWL_ComboBoxProxy::OnLButtonDown(CFWL_Message* pMessage) {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  CFX_RectF rtWidget;
-  GetWidgetRect(rtWidget);
-  rtWidget.left = rtWidget.top = 0;
-
-  CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
-  if (rtWidget.Contains(pMsg->m_fx, pMsg->m_fy)) {
-    m_bLButtonDown = true;
-    pDriver->SetGrab(this, true);
-  } else {
-    m_bLButtonDown = false;
-    pDriver->SetGrab(this, false);
-    m_pComboBox->ShowDropList(false);
-  }
-}
-
-void IFWL_ComboBoxProxy::OnLButtonUp(CFWL_Message* pMessage) {
-  m_bLButtonDown = false;
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  pDriver->SetGrab(this, false);
-  if (!m_bLButtonUpSelf) {
-    m_bLButtonUpSelf = true;
-    return;
-  }
-
-  CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
-  CFX_RectF rect;
-  GetWidgetRect(rect);
-  rect.left = rect.top = 0;
-  if (!rect.Contains(pMsg->m_fx, pMsg->m_fy) &&
-      m_pComboBox->IsDropListVisible()) {
-    m_pComboBox->ShowDropList(false);
-  }
-}
-
-void IFWL_ComboBoxProxy::OnFocusChanged(CFWL_Message* pMessage, bool bSet) {
-  if (bSet)
-    return;
-
-  CFWL_MsgKillFocus* pMsg = static_cast<CFWL_MsgKillFocus*>(pMessage);
-  if (!pMsg->m_pSetFocus)
-    m_pComboBox->ShowDropList(false);
-}