Remove xfa/src/fwl/src and move code up a level.

xfa/src/fwl/src/lightwidget/app.cpp

Index: xfa/src/fwl/src/lightwidget/app.cpp
diff --git a/xfa/src/fwl/src/lightwidget/app.cpp b/xfa/src/fwl/src/lightwidget/app.cpp
deleted file mode 100644
index 31a39c17f0f7e0c67c441e9fe61e133d60226d0b..0000000000000000000000000000000000000000
--- a/xfa/src/fwl/src/lightwidget/app.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-// 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/include/fxcrt/fx_coordinates.h"
-#include "xfa/include/fwl/core/fwl_app.h"
-#include "xfa/include/fwl/core/fwl_error.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);
-}