Move xfa/src up to xfa/.

xfa/src/fwl/core/fwl_appimp.h

-// 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
-
-#ifndef XFA_SRC_FWL_CORE_FWL_APPIMP_H_
-#define XFA_SRC_FWL_CORE_FWL_APPIMP_H_
-
-#include <memory>
-
-#include "xfa/src/fwl/core/fwl_threadimp.h"
-
-class CFWL_WidgetMgr;
-class IFWL_AdapterNative;
-class IFWL_WidgetMgr;
-class IFWL_ThemeProvider;
-class IFWL_App;
-
-class CFWL_AppImp : public CFWL_NoteThreadImp {
- public:
-  CFWL_AppImp(IFWL_App* pIface, IFWL_AdapterNative* pAdapter);
-  virtual ~CFWL_AppImp();
-  virtual FWL_ERR Initialize();
-  virtual FWL_ERR Finalize();
-  virtual IFWL_AdapterNative* GetAdapterNative() const;
-  virtual IFWL_WidgetMgr* GetWidgetMgr() const;
-  virtual IFWL_ThemeProvider* GetThemeProvider() const;
-  virtual FWL_ERR SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
-  virtual FWL_ERR Exit(int32_t iExitCode = 0);
-
- protected:
-  IFWL_AdapterNative* const m_pAdapterNative;
-  std::unique_ptr<CFWL_WidgetMgr> m_pWidgetMgr;
-  IFWL_ThemeProvider* m_pThemeProvider;
-};
-
-#endif  // XFA_SRC_FWL_CORE_FWL_APPIMP_H_