Cleanup IFWL_Adapter interfaces.

xfa/fwl/basewidget/fwl_tooltipctrlimp.cpp

 // 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
 
 #include "xfa/fwl/basewidget/fwl_tooltipctrlimp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/basewidget/ifwl_tooltip.h"
@@ skipping 207 matching lines @@
   if (m_hTimerHide) {
     FWL_StopTimer(m_hTimerHide);
     m_hTimerHide = NULL;
   }
   if (m_hTimerShow) {
     FWL_StopTimer(m_hTimerShow);
     m_hTimerShow = NULL;
   }
   return TRUE;
 }
-FWL_ERR CFWL_ToolTipImp::SetStates(uint32_t dwStates, FX_BOOL bSet) {
+
+void CFWL_ToolTipImp::SetStates(uint32_t dwStates, FX_BOOL bSet) {
   if ((dwStates & FWL_WGTSTATE_Invisible) && !bSet) {
     IFWL_ToolTipDP* pData =
         static_cast<IFWL_ToolTipDP*>(m_pProperties->m_pDataProvider);
     int32_t nAutoPopDelay = pData->GetAutoPopDelay(m_pInterface);
     m_hTimerHide = FWL_StartTimer(&m_TimerHide, nAutoPopDelay, FALSE);
   }
-  return CFWL_WidgetImp::SetStates(dwStates, bSet);
+  CFWL_WidgetImp::SetStates(dwStates, bSet);
 }
+
 void CFWL_ToolTipImp::RefreshToolTipPos() {
   if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_TTP_NoAnchor) == 0) {
     CFX_RectF rtPopup;
     CFX_RectF rtWidget(m_pProperties->m_rtWidget);
     CFX_RectF rtAnchor(m_rtAnchor);
     rtPopup.Set(0, 0, 0, 0);
     FX_FLOAT fx = rtAnchor.Center().x + 20;
     FX_FLOAT fy = rtAnchor.Center().y + 20;
     rtPopup.Set(fx, fy, rtWidget.Width(), rtWidget.Height());
     FX_FLOAT fScreenWidth = 0;
@@ skipping 40 matching lines @@
 int32_t CFWL_ToolTipImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {
   return CFWL_WidgetImpDelegate::OnProcessMessage(pMessage);
 }
 FWL_ERR CFWL_ToolTipImpDelegate::OnProcessEvent(CFWL_Event* pEvent) {
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CFWL_ToolTipImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics,
                                               const CFX_Matrix* pMatrix) {
   return m_pOwner->DrawWidget(pGraphics, pMatrix);
 }