Make the I in IFormFiller explicit

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/include/cpdfsdk_annothandlermgr.h"
 
 #include "core/fpdfdoc/include/cpdf_annot.h"
 #include "fpdfsdk/include/cba_annotiterator.h"
@@ skipping 13 matching lines @@
 #include "xfa/fxfa/include/xfa_ffwidget.h"
 #endif  // PDF_ENABLE_XFA
 
 CPDFSDK_AnnotHandlerMgr::CPDFSDK_AnnotHandlerMgr(CPDFSDK_Environment* pApp)
     : m_pBAAnnotHandler(new CPDFSDK_BAAnnotHandler()),
       m_pWidgetHandler(new CPDFSDK_WidgetHandler(pApp)),
 #ifdef PDF_ENABLE_XFA
       m_pXFAWidgetHandler(new CPDFSDK_XFAWidgetHandler(pApp)),
 #endif  // PDF_ENABLE_XFA
       m_pApp(pApp) {
-  m_pWidgetHandler->SetFormFiller(m_pApp->GetIFormFiller());
+  m_pWidgetHandler->SetFormFiller(m_pApp->GetInteractiveFormFiller());
 }
 
 CPDFSDK_AnnotHandlerMgr::~CPDFSDK_AnnotHandlerMgr() {}
 
 CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::NewAnnot(CPDF_Annot* pAnnot,
                                                  CPDFSDK_PageView* pPageView) {
   ASSERT(pPageView);
   return GetAnnotHandler(pAnnot->GetSubtype())->NewAnnot(pAnnot, pPageView);
 }
 
@@ skipping 254 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
 }