Remove IFWL_*::Create methods, use new

xfa/fwl/lightwidget/cfwl_pushbutton.cpp

Index: xfa/fwl/lightwidget/cfwl_pushbutton.cpp
diff --git a/xfa/fwl/lightwidget/cfwl_pushbutton.cpp b/xfa/fwl/lightwidget/cfwl_pushbutton.cpp
index 79afe805cd578748b0437f862595d56f9a08f324..d864ea9ca20e7f6a4687c808c4800eccee06c04a 100644
--- a/xfa/fwl/lightwidget/cfwl_pushbutton.cpp
+++ b/xfa/fwl/lightwidget/cfwl_pushbutton.cpp
@@ -23,8 +23,8 @@ FWL_Error CFWL_PushButton::Initialize(
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
-  std::unique_ptr<IFWL_PushButton> pPushButton(IFWL_PushButton::Create(
-      m_pProperties->MakeWidgetImpProperties(&m_buttonData), nullptr));
+  std::unique_ptr<IFWL_PushButton> pPushButton(new IFWL_PushButton(
+      m_pProperties->MakeWidgetImpProperties(&m_buttonData)));
   FWL_Error ret = pPushButton->Initialize();
   if (ret != FWL_Error::Succeeded) {
     return ret;