Merge delegates into IFWL_* classes.

xfa/fwl/core/ifwl_picturebox.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/core/ifwl_picturebox.h"
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_picturebox.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 
 IFWL_PictureBox::IFWL_PictureBox(const IFWL_App* app,
                                  const CFWL_WidgetImpProperties& properties)
     : IFWL_Widget(app, properties, nullptr),
       m_bTop(FALSE),
       m_bVCenter(FALSE),
       m_bButton(FALSE) {
   m_rtClient.Reset();
   m_rtImage.Reset();
   m_matrix.SetIdentity();
-
-  SetDelegate(pdfium::MakeUnique<CFWL_PictureBoxImpDelegate>(this));
 }
 
 IFWL_PictureBox::~IFWL_PictureBox() {}
 
 FWL_Type IFWL_PictureBox::GetClassID() const {
   return FWL_Type::PictureBox;
 }
 
 FWL_Error IFWL_PictureBox::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
   if (bAutoSize) {
@@ skipping 78 matching lines @@
     case FWL_STYLEEXT_PTB_Vcenter:
       m_bVCenter = TRUE;
       return true;
     case FWL_STYLEEXT_PTB_Bottom:
       m_bButton = TRUE;
       return true;
   }
   return false;
 }
 
-CFWL_PictureBoxImpDelegate::CFWL_PictureBoxImpDelegate(IFWL_PictureBox* pOwner)
-    : m_pOwner(pOwner) {}
-
-void CFWL_PictureBoxImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics,
-                                              const CFX_Matrix* pMatrix) {
-  m_pOwner->DrawWidget(pGraphics, pMatrix);
+void IFWL_PictureBox::OnDrawWidget(CFX_Graphics* pGraphics,
+                                   const CFX_Matrix* pMatrix) {
+  DrawWidget(pGraphics, pMatrix);
 }