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

xfa/src/fwl/src/core/fwl_threadimp.h

Index: xfa/src/fwl/src/core/fwl_threadimp.h
diff --git a/xfa/src/fwl/src/core/fwl_threadimp.h b/xfa/src/fwl/src/core/fwl_threadimp.h
deleted file mode 100644
index ead224ae12023e91fd49015c1d89f59d79f63710..0000000000000000000000000000000000000000
--- a/xfa/src/fwl/src/core/fwl_threadimp.h
+++ /dev/null
@@ -1,40 +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
-
-#ifndef XFA_SRC_FWL_SRC_CORE_FWL_THREADIMP_H_
-#define XFA_SRC_FWL_SRC_CORE_FWL_THREADIMP_H_
-
-#include "xfa/include/fwl/core/fwl_thread.h"  // For FWL_HTHREAD.
-
-class CFWL_NoteDriver;
-class IFWL_NoteDriver;
-
-class CFWL_ThreadImp {
- public:
-  virtual ~CFWL_ThreadImp() {}
-  IFWL_Thread* GetInterface() const { return m_pIface; }
-  virtual FWL_ERR Run(FWL_HTHREAD hThread);
-
- protected:
-  CFWL_ThreadImp(IFWL_Thread* pIface) : m_pIface(pIface) {}
-
- private:
-  IFWL_Thread* const m_pIface;
-};
-
-class CFWL_NoteThreadImp : public CFWL_ThreadImp {
- public:
-  CFWL_NoteThreadImp(IFWL_NoteThread* pIface);
-  virtual ~CFWL_NoteThreadImp();
-
-  FWL_ERR Run(FWL_HTHREAD hThread) override;
-  virtual IFWL_NoteDriver* GetNoteDriver();
-
- protected:
-  CFWL_NoteDriver* const m_pNoteDriver;
-};
-
-#endif  // XFA_SRC_FWL_SRC_CORE_FWL_THREADIMP_H_