Move xfa/include/fwl/{theme,lightwidget} to xfa/fwl

xfa/fwl/lightwidget/app.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/include/fwl/lightwidget/app.h"
-
-#include "core/fxcrt/include/fx_coordinates.h"
-#include "xfa/fwl/core/fwl_error.h"
-#include "xfa/fwl/core/ifwl_app.h"
-#include "xfa/include/fwl/lightwidget/theme.h"
-
-CFWL_App::CFWL_App() : m_pIface(IFWL_App::Create(nullptr)), m_pTheme(nullptr) {}
-CFWL_App::~CFWL_App() {
-  if (m_pTheme) {
-    m_pTheme->Finalize();
-    delete m_pTheme;
-    m_pTheme = NULL;
-  }
-  m_pIface->Release();
-}
-FWL_ERR CFWL_App::Initialize() {
-  m_pTheme = new CFWL_Theme;
-  m_pTheme->Initialize();
-  m_pIface->SetThemeProvider(m_pTheme);
-  return m_pIface->Initialize();
-}
-FWL_ERR CFWL_App::Exit(int32_t iExitCode) {
-  if (!m_pIface)
-    return FWL_ERR_Indefinite;
-  return m_pIface->Exit(iExitCode);
-}