Rename fpdfsdk/fpdfxfa files to match contents

fpdfsdk/cpdfsdk_xfawidgethandler.cpp

 // 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 "fpdfsdk/cpdfsdk_xfawidgethandler.h"
 
 #include "core/fpdfdoc/cpdf_interform.h"
 #include "fpdfsdk/cpdfsdk_annot.h"
 #include "fpdfsdk/cpdfsdk_document.h"
 #include "fpdfsdk/cpdfsdk_environment.h"
 #include "fpdfsdk/cpdfsdk_interform.h"
 #include "fpdfsdk/cpdfsdk_pageview.h"
 #include "fpdfsdk/cpdfsdk_xfawidget.h"
-#include "fpdfsdk/fpdfxfa/fpdfxfa_doc.h"
+#include "fpdfsdk/fpdfxfa/cpdfxfa_document.h"
 #include "xfa/fwl/core/fwl_widgethit.h"
 #include "xfa/fxfa/fxfa_basic.h"
 #include "xfa/fxfa/xfa_ffdocview.h"
 #include "xfa/fxfa/xfa_ffpageview.h"
 #include "xfa/fxfa/xfa_ffwidget.h"
 #include "xfa/fxfa/xfa_ffwidgethandler.h"
 #include "xfa/fxgraphics/cfx_graphics.h"
 
 CPDFSDK_XFAWidgetHandler::CPDFSDK_XFAWidgetHandler(CPDFSDK_Environment* pEnv)
     : m_pEnv(pEnv) {}
@@ skipping 351 matching lines @@
     dwFWLFlag |= FWL_KEYFLAG_MButton;
   if (dwFlag & FWL_EVENTFLAG_RightButtonDown)
     dwFWLFlag |= FWL_KEYFLAG_RButton;
   if (dwFlag & FWL_EVENTFLAG_ShiftKey)
     dwFWLFlag |= FWL_KEYFLAG_Shift;
   if (dwFlag & FWL_EVENTFLAG_AltKey)
     dwFWLFlag |= FWL_KEYFLAG_Alt;
 
   return dwFWLFlag;
 }