Remove xfa/src/fwl/src and move code up a level.

xfa/src/fwl/basewidget/fwl_checkboximp.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/src/fwl/src/basewidget/fwl_checkboximp.h"
+#include "xfa/src/fwl/basewidget/fwl_checkboximp.h"
 
 #include <algorithm>
 
 #include "xfa/include/fwl/basewidget/fwl_checkbox.h"
 #include "xfa/include/fwl/core/fwl_theme.h"
 #include "xfa/src/fdp/include/fde_tto.h"
-#include "xfa/src/fwl/src/core/fwl_noteimp.h"
-#include "xfa/src/fwl/src/core/fwl_targetimp.h"
-#include "xfa/src/fwl/src/core/fwl_widgetimp.h"
-#include "xfa/src/fwl/src/core/fwl_widgetmgrimp.h"
+#include "xfa/src/fwl/core/fwl_noteimp.h"
+#include "xfa/src/fwl/core/fwl_targetimp.h"
+#include "xfa/src/fwl/core/fwl_widgetimp.h"
+#include "xfa/src/fwl/core/fwl_widgetmgrimp.h"
 
 #define FWL_CKB_CaptionMargin 5
 
 // static
 IFWL_CheckBox* IFWL_CheckBox::Create(const CFWL_WidgetImpProperties& properties,
                                      IFWL_Widget* pOuter) {
   IFWL_CheckBox* pCheckBox = new IFWL_CheckBox;
   CFWL_CheckBoxImp* pCheckBoxImpl = new CFWL_CheckBoxImp(properties, pOuter);
   pCheckBox->SetImpl(pCheckBoxImpl);
   pCheckBoxImpl->SetInterface(pCheckBox);
@@ skipping 518 matching lines @@
 void CFWL_CheckBoxImpDelegate::OnKeyDown(CFWL_MsgKey* pMsg) {
   if (pMsg->m_dwKeyCode == FWL_VKEY_Tab) {
     m_pOwner->DispatchKeyEvent(pMsg);
     return;
   }
   if (pMsg->m_dwKeyCode == FWL_VKEY_Return ||
       pMsg->m_dwKeyCode == FWL_VKEY_Space) {
     m_pOwner->NextStates();
   }
 }