Remove FWL globals.

xfa/fwl/core/ifwl_datetimeedit.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_datetimeedit.h"
 
 #include "xfa/fwl/core/cfwl_widgetmgr.h"
 #include "xfa/fwl/core/ifwl_datetimepicker.h"
 
-IFWL_DateTimeEdit::IFWL_DateTimeEdit(const CFWL_WidgetImpProperties& properties,
+IFWL_DateTimeEdit::IFWL_DateTimeEdit(const IFWL_App* app,
+                                     const CFWL_WidgetImpProperties& properties,
                                      IFWL_Widget* pOuter)
-    : IFWL_Edit(properties, pOuter) {}
+    : IFWL_Edit(app, properties, pOuter) {}
 
-FWL_Error IFWL_DateTimeEdit::Initialize() {
+void IFWL_DateTimeEdit::Initialize() {
+  IFWL_Edit::Initialize();
+
+  // Delete delegate set by IFWL_Edit::Initialize.
+  delete m_pDelegate;
   m_pDelegate = new CFWL_DateTimeEditImpDelegate(this);
-  if (IFWL_Edit::Initialize() != FWL_Error::Succeeded)
-    return FWL_Error::Indefinite;
-  return FWL_Error::Succeeded;
 }
 
 void IFWL_DateTimeEdit::Finalize() {
   delete m_pDelegate;
   m_pDelegate = nullptr;
   IFWL_Edit::Finalize();
 }
 
 CFWL_DateTimeEditImpDelegate::CFWL_DateTimeEditImpDelegate(
     IFWL_DateTimeEdit* pOwner)
@@ skipping 32 matching lines @@
           pDateTime->GetWidgetRect(rtInvalidate);
           pDateTime->ShowMonthCalendar(FALSE);
           rtInvalidate.Offset(-rtInvalidate.left, -rtInvalidate.top);
           pDateTime->Repaint(&rtInvalidate);
         }
       }
     }
   }
   CFWL_EditImpDelegate::OnProcessMessage(pMessage);
 }