Cleanup widget edge related code

xfa/fwl/cfwl_spinbutton.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/cfwl_spinbutton.h"
 
 #include <memory>
 #include <utility>
@@ skipping 51 matching lines @@
     m_rtDnButton.Set(m_rtClient.left + m_rtClient.width / 2, m_rtClient.top,
                      m_rtClient.width / 2, m_rtClient.height);
   }
 }
 
 FWL_WidgetHit CFWL_SpinButton::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
   if (m_rtClient.Contains(fx, fy))
     return FWL_WidgetHit::Client;
   if (HasBorder() && (m_rtClient.Contains(fx, fy)))
     return FWL_WidgetHit::Border;
-  if (HasEdge() && GetEdgeRect().Contains(fx, fy))
-    return FWL_WidgetHit::Left;
   if (m_rtUpButton.Contains(fx, fy))
     return FWL_WidgetHit::UpButton;
   if (m_rtDnButton.Contains(fx, fy))
     return FWL_WidgetHit::DownButton;
   return FWL_WidgetHit::Unknown;
 }
 
 void CFWL_SpinButton::DrawWidget(CFX_Graphics* pGraphics,
                                  const CFX_Matrix* pMatrix) {
   if (!pGraphics)
     return;
 
   CFX_RectF rtClip(m_rtClient);
   if (pMatrix)
     pMatrix->TransformRect(rtClip);
 
   IFWL_ThemeProvider* pTheme = GetAvailableTheme();
   if (HasBorder())
     DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
-  if (HasEdge())
-    DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
 
   DrawUpButton(pGraphics, pTheme, pMatrix);
   DrawDownButton(pGraphics, pTheme, pMatrix);
 }
 
 void CFWL_SpinButton::DisableButton() {
   m_dwDnState = CFWL_PartState_Disabled;
 }
 
 bool CFWL_SpinButton::IsUpButtonEnabled() {
@@ skipping 245 matching lines @@
 
 void CFWL_SpinButton::Timer::Run(CFWL_TimerInfo* pTimerInfo) {
   CFWL_SpinButton* pButton = static_cast<CFWL_SpinButton*>(m_pWidget);
 
   if (!pButton->m_pTimerInfo)
     return;
 
   CFWL_Event wmPosChanged(CFWL_Event::Type::Click, pButton);
   pButton->DispatchEvent(&wmPosChanged);
 }