Rename fpdfsdk/fpdfxfa files to match contents

fpdfsdk/cpdfsdk_annothandlermgr.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_annothandlermgr.h"
 
 #include "core/fpdfdoc/cpdf_annot.h"
 #include "fpdfsdk/cba_annotiterator.h"
 #include "fpdfsdk/cpdfsdk_annot.h"
 #include "fpdfsdk/cpdfsdk_baannot.h"
 #include "fpdfsdk/cpdfsdk_baannothandler.h"
 #include "fpdfsdk/cpdfsdk_datetime.h"
 #include "fpdfsdk/cpdfsdk_document.h"
 #include "fpdfsdk/cpdfsdk_environment.h"
 #include "fpdfsdk/cpdfsdk_pageview.h"
 #include "fpdfsdk/cpdfsdk_widgethandler.h"
 
 #ifdef PDF_ENABLE_XFA
 #include "fpdfsdk/cpdfsdk_xfawidgethandler.h"
-#include "fpdfsdk/fpdfxfa/fpdfxfa_page.h"
+#include "fpdfsdk/fpdfxfa/cpdfxfa_page.h"
 #include "xfa/fxfa/xfa_ffpageview.h"
 #include "xfa/fxfa/xfa_ffwidget.h"
 #endif  // PDF_ENABLE_XFA
 
 CPDFSDK_AnnotHandlerMgr::CPDFSDK_AnnotHandlerMgr(CPDFSDK_Environment* pEnv)
     : m_pBAAnnotHandler(new CPDFSDK_BAAnnotHandler()),
       m_pWidgetHandler(new CPDFSDK_WidgetHandler(pEnv)),
 #ifdef PDF_ENABLE_XFA
       m_pXFAWidgetHandler(new CPDFSDK_XFAWidgetHandler(pEnv)),
 #endif  // PDF_ENABLE_XFA
@@ skipping 269 matching lines @@
       bNext ? pWidgetIterator->MoveToNext() : pWidgetIterator->MoveToPrevious();
   if (!hNextFocus && pSDKAnnot)
     hNextFocus = pWidgetIterator->MoveToFirst();
 
   return pPageView->GetAnnotByXFAWidget(hNextFocus);
 #else   // PDF_ENABLE_XFA
   CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), CPDF_Annot::Subtype::WIDGET);
   return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
 #endif  // PDF_ENABLE_XFA
 }