Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/cfwl_widgetmgr.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/cfwl_widgetmgr.h"
 
 #include <utility>
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_app.h"
+#include "xfa/fwl/core/cfwl_form.h"
 #include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fwl/core/ifwl_form.h"
 #include "xfa/fxfa/app/xfa_fwladapter.h"
 #include "xfa/fxfa/xfa_ffapp.h"
 
 namespace {
 
 const int kNeedRepaintHitPoints = 12;
 const int kNeedRepaintHitPiece = 3;
 
 struct FWL_NEEDREPAINTHITDATA {
   CFX_PointF hitPoint;
@@ skipping 734 matching lines @@
       pWidget(widget),
       iRedrawCounter(0)
 #if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
       ,
       bOutsideChanged(false)
 #endif
 {
 }
 
 CFWL_WidgetMgr::Item::~Item() {}