Cleanup IFWL_Adapter interfaces.

xfa/fwl/basewidget/fwl_comboboximp.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_FWL_BASEWIDGET_FWL_COMBOBOXIMP_H_
 #define XFA_FWL_BASEWIDGET_FWL_COMBOBOXIMP_H_
 
 #include <memory>
@@ skipping 73 matching lines @@
   CFWL_ComboBoxImp(const CFWL_WidgetImpProperties& properties,
                    IFWL_Widget* pOuter);
   virtual ~CFWL_ComboBoxImp();
   virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const;
   virtual uint32_t GetClassID() const;
   virtual FWL_ERR Initialize();
   virtual FWL_ERR Finalize();
   virtual FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
   virtual FWL_ERR ModifyStylesEx(uint32_t dwStylesExAdded,
                                  uint32_t dwStylesExRemoved);
-  virtual FWL_ERR SetStates(uint32_t dwStates, FX_BOOL bSet = TRUE);
+  virtual void SetStates(uint32_t dwStates, FX_BOOL bSet = TRUE);
   virtual FWL_ERR Update();
   virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
   virtual FWL_ERR DrawWidget(CFX_Graphics* pGraphics,
                              const CFX_Matrix* pMatrix = NULL);
   virtual FWL_ERR SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
   virtual int32_t GetCurSel();
   virtual FWL_ERR SetCurSel(int32_t iSel);
   virtual FWL_ERR SetEditText(const CFX_WideString& wsText);
   virtual int32_t GetEditTextLength() const;
   virtual FWL_ERR GetEditText(CFX_WideString& wsText,
@@ skipping 123 matching lines @@
   void OnDeactive(CFWL_MsgDeactivate* pMsg);
   void OnFocusChanged(CFWL_MsgKillFocus* pMsg, FX_BOOL bSet);
   FX_BOOL m_bLButtonDown;
   FX_BOOL m_bLButtonUpSelf;
   FX_FLOAT m_fStartPos;
   IFWL_Form* m_pForm;
   CFWL_ComboBoxImp* m_pComboBox;
 };
 
 #endif  // XFA_FWL_BASEWIDGET_FWL_COMBOBOXIMP_H_