Remove include only fwl.h and IWYU.

xfa/include/fwl/basewidget/fwl_listbox.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_BASEWIDGET_FWL_LISTBOX_H_
 #define XFA_INCLUDE_FWL_BASEWIDGET_FWL_LISTBOX_H_
 
-class CFWL_WidgetImpProperties;
-class IFWL_Widget;
+#include "xfa/include/fwl/core/fwl_note.h"
+#include "xfa/include/fwl/core/fwl_widget.h"
+
 class IFWL_ListBoxDP;
-class IFWL_ListBox;
+
 #define FWL_CLASS_ListBox L"FWL_LISTBOX"
 #define FWL_CLASSHASH_ListBox 1777358317
 #define FWL_STYLEEXT_LTB_MultiSelection (1L << 0)
 #define FWL_STYLEEXT_LTB_Sort (1L << 1)
 #define FWL_STYLEEXT_LTB_ShowScrollBarAlaways (1L << 2)
 #define FWL_STYLEEXT_LTB_MultiColumn (1L << 3)
 #define FWL_STYLEEXT_LTB_LeftAlign (0L << 4)
 #define FWL_STYLEEXT_LTB_CenterAlign (1L << 4)
 #define FWL_STYLEEXT_LTB_RightAlign (2L << 4)
 #define FWL_STYLEEXT_LTB_MultiLine (1L << 6)
@@ skipping 18 matching lines @@
 #define FWL_PARTSTATE_LTB_UnChecked (0L << 3)
 #define FWL_PARTSTATE_LTB_Checked (1L << 3)
 #define FWL_PARTSTATE_LTB_Mask (3L << 0)
 #define FWL_WGTHITTEST_LTB_Item FWL_WGTHITTEST_MAX + 1
 #define FWL_WGTHITTEST_LTB_HScrollBar FWL_WGTHITTEST_MAX + 2
 #define FWL_WGTHITTEST_LTB_VScrollBar FWL_WGTHITTEST_MAX + 3
 #define FWL_EVT_LTB_SelChanged L"FWL_EVENT_LTB_SelChanged"
 #define FWL_EVT_LTB_DrawItem L"FWL_EVENT_LTB_DrawItem"
 #define FWL_EVTHASH_LTB_SelChanged 1701781688
 #define FWL_EVTHASH_LTB_DrawItem 1050853991
+
 BEGIN_FWL_EVENT_DEF(CFWL_EvtLtbSelChanged, FWL_EVTHASH_LTB_SelChanged)
 CFX_Int32Array iarraySels;
 END_FWL_EVENT_DEF
+
 BEGIN_FWL_EVENT_DEF(CFWL_EvtLtbDrawItem, FWL_EVTHASH_LTB_DrawItem)
 CFX_Graphics* m_pGraphics;
 CFX_Matrix m_matrix;
 int32_t m_index;
 CFX_RectF m_rect;
 END_FWL_EVENT_DEF
+
 typedef struct FWL_HLISTITEM_ { void* pData; } * FWL_HLISTITEM;
 struct FWL_ListBoxItemData {
   IFWL_ListBoxDP* pDataProvider;
   int32_t iIndex;
 };
+
 class IFWL_ListBoxDP : public IFWL_DataProvider {
  public:
   virtual int32_t CountItems(IFWL_Widget* pWidget) = 0;
   virtual FWL_HLISTITEM GetItem(IFWL_Widget* pWidget, int32_t nIndex) = 0;
   virtual int32_t GetItemIndex(IFWL_Widget* pWidget, FWL_HLISTITEM hItem) = 0;
   virtual FX_BOOL SetItemIndex(IFWL_Widget* pWidget,
                                FWL_HLISTITEM hItem,
                                int32_t nIndex) = 0;
   virtual FX_DWORD GetItemStyles(IFWL_Widget* pWidget, FWL_HLISTITEM hItem) = 0;
   virtual FWL_ERR GetItemText(IFWL_Widget* pWidget,
@@ skipping 46 matching lines @@
   FWL_ERR SetSelItem(FWL_HLISTITEM hItem, FX_BOOL bSelect = TRUE);
   FWL_ERR GetItemText(FWL_HLISTITEM hItem, CFX_WideString& wsText);
   FWL_ERR GetScrollPos(FX_FLOAT& fPos, FX_BOOL bVert = TRUE);
   FWL_ERR* Sort(IFWL_ListBoxCompare* pCom);
 
  protected:
   IFWL_ListBox();
 };
 
 #endif  // XFA_INCLUDE_FWL_BASEWIDGET_FWL_LISTBOX_H_