Remove include only fwl.h and IWYU.

xfa/include/fwl/adapter/fwl_sdadapterimp.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_INCLUDE_FWL_ADAPTER_FWL_SDADAPTERIMP_H_
 #define XFA_INCLUDE_FWL_ADAPTER_FWL_SDADAPTERIMP_H_
 
-class IFWL_AdapterNative;
-class IFWL_AdapterWidgetMgr;
-class IFWL_AdapterThreadMgr;
-class IFWL_AdapterTimerMgr;
-class IFWL_WidgetMgrDelegate;
-class CFWL_SDAdatperNative;
-class CFWL_SDAdapterWidgetMgr;
-class CFWL_SDAdapterTimerMgr;
+#include "xfa/include/fwl/adapter/fwl_adapterthreadmgr.h"
+#include "xfa/include/fwl/adapter/fwl_adapterwidgetmgr.h"
+
 class CFWL_SDAdapterWidgetMgr : public IFWL_AdapterWidgetMgr {
  public:
   CFWL_SDAdapterWidgetMgr();
   ~CFWL_SDAdapterWidgetMgr();
   virtual FWL_ERR CreateWidget(IFWL_Widget* pWidget,
                                IFWL_Widget* pParent = NULL);
   virtual FWL_ERR DestroyWidget(IFWL_Widget* pWidget);
   virtual FWL_ERR SetWidgetRect(IFWL_Widget* pWidget, const CFX_RectF& rect);
   virtual FWL_ERR SetWidgetPosition(IFWL_Widget* pWidget,
                                     FX_FLOAT fx,
@@ skipping 39 matching lines @@
   virtual FWL_ERR UpdateMenu(IFWL_Menu* pMenu,
                              const void* hItem,
                              int32_t iType);
   virtual int32_t TrackPopupMenu(IFWL_Menu* pMenu, IFWL_MenuDP* pMenuData);
   virtual FWL_ERR SetMessageHook(IFWL_AdapterMessageHook* hook);
   virtual FWL_ERR GetSystemBorder(FX_FLOAT& l,
                                   FX_FLOAT& t,
                                   FX_FLOAT& r,
                                   FX_FLOAT& b);
 };
+
 class CFWL_SDAdapterThreadMgr : public IFWL_AdapterThreadMgr {
  public:
   CFWL_SDAdapterThreadMgr();
   ~CFWL_SDAdapterThreadMgr();
 
  public:
   virtual FWL_ERR Start(IFWL_Thread* pThread,
                         FWL_HTHREAD& hThread,
                         FX_BOOL bSuspended = FALSE);
   virtual FWL_ERR Resume(FWL_HTHREAD hThread);
   virtual FWL_ERR Suspend(FWL_HTHREAD hThread);
   virtual FWL_ERR Kill(FWL_HTHREAD hThread, int32_t iExitCode);
   virtual FWL_ERR Stop(FWL_HTHREAD hThread, int32_t iExitCode);
   virtual IFWL_Thread* GetCurrentThread();
 };
 
 #endif  // XFA_INCLUDE_FWL_ADAPTER_FWL_SDADAPTERIMP_H_