Move xfa/fwl/core to xfa/fwl.

xfa/fwl/core/cfwl_evtvalidate.cpp

Index: xfa/fwl/core/cfwl_evtvalidate.cpp
diff --git a/xfa/fwl/core/cfwl_evtvalidate.cpp b/xfa/fwl/core/cfwl_evtvalidate.cpp
deleted file mode 100644
index 1f2b6977fa64b600ca69f3063621fa7896fc379c..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/cfwl_evtvalidate.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2016 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/cfwl_evtvalidate.h"
-
-CFWL_EvtValidate::CFWL_EvtValidate(CFWL_Widget* pSrcTarget)
-    : CFWL_Event(CFWL_Event::Type::Validate, pSrcTarget) {}
-
-CFWL_EvtValidate::~CFWL_EvtValidate() {}