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

xfa/fwl/basewidget/fwl_formproxyimp.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/basewidget/fwl_formproxyimp.h"
-
-#include "xfa/fwl/core/fwl_formimp.h"
-#include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_widgetimp.h"
-
-CFWL_FormProxyImp::CFWL_FormProxyImp(const CFWL_WidgetImpProperties& properties,
-                                     IFWL_Widget* pOuter)
-    : CFWL_FormImp(properties, pOuter) {}
-
-CFWL_FormProxyImp::~CFWL_FormProxyImp() {}
-
-FWL_Error CFWL_FormProxyImp::GetClassName(CFX_WideString& wsClass) const {
-  wsClass = FWL_CLASS_FormProxy;
-  return FWL_Error::Succeeded;
-}
-
-FWL_Type CFWL_FormProxyImp::GetClassID() const {
-  return FWL_Type::FormProxy;
-}
-
-FX_BOOL CFWL_FormProxyImp::IsInstance(const CFX_WideStringC& wsClass) const {
-  if (wsClass == CFX_WideStringC(FWL_CLASS_FormProxy)) {
-    return TRUE;
-  }
-  return CFWL_FormImp::IsInstance(wsClass);
-}
-FWL_Error CFWL_FormProxyImp::Initialize() {
-  if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
-    return FWL_Error::Indefinite;
-  m_pDelegate = new CFWL_FormProxyImpDelegate(this);
-  return FWL_Error::Succeeded;
-}
-FWL_Error CFWL_FormProxyImp::Finalize() {
-  delete m_pDelegate;
-  m_pDelegate = nullptr;
-  return CFWL_WidgetImp::Finalize();
-}
-FWL_Error CFWL_FormProxyImp::Update() {
-  return FWL_Error::Succeeded;
-}
-FWL_Error CFWL_FormProxyImp::DrawWidget(CFX_Graphics* pGraphics,
-                                        const CFX_Matrix* pMatrix) {
-  return FWL_Error::Succeeded;
-}
-
-CFWL_FormProxyImpDelegate::CFWL_FormProxyImpDelegate(CFWL_FormProxyImp* pOwner)
-    : m_pOwner(pOwner) {}
-
-void CFWL_FormProxyImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {
-  IFWL_WidgetDelegate* pDelegate = m_pOwner->m_pOuter->SetDelegate(nullptr);
-  pDelegate->OnProcessMessage(pMessage);
-}