Remove IFWL_*::Create methods, use new

xfa/fwl/lightwidget/cfwl_datetimepicker.cpp

Index: xfa/fwl/lightwidget/cfwl_datetimepicker.cpp
diff --git a/xfa/fwl/lightwidget/cfwl_datetimepicker.cpp b/xfa/fwl/lightwidget/cfwl_datetimepicker.cpp
index fccf8eac6323335c3515ca90224790496c7c3e6c..6c32d9b5ba26b98d1a17e22a8f84324730a0e3d1 100644
--- a/xfa/fwl/lightwidget/cfwl_datetimepicker.cpp
+++ b/xfa/fwl/lightwidget/cfwl_datetimepicker.cpp
@@ -8,6 +8,7 @@
 
 #include <memory>
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/fwl_error.h"
 #include "xfa/fwl/core/ifwl_datetimepicker.h"
 #include "xfa/fwl/core/ifwl_widget.h"
@@ -27,10 +28,9 @@ FWL_Error CFWL_DateTimePicker::Initialize(
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
-  std::unique_ptr<IFWL_DateTimePicker> pDateTimePicker(
-      IFWL_DateTimePicker::Create(
-          m_pProperties->MakeWidgetImpProperties(&m_DateTimePickerDP),
-          nullptr));
+  std::unique_ptr<IFWL_DateTimePicker> pDateTimePicker =
+      pdfium::MakeUnique<IFWL_DateTimePicker>(
+          m_pProperties->MakeWidgetImpProperties(&m_DateTimePickerDP));
   FWL_Error ret = pDateTimePicker->Initialize();
   if (ret != FWL_Error::Succeeded) {
     return ret;