Make the I in IFormFiller explicit

xfa/fxfa/parser/cxfa_document.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 "core/fxcrt/include/fx_ext.h"
 #include "xfa/fxfa/app/xfa_ffnotify.h"
 #include "xfa/fxfa/parser/cscript_datawindow.h"
 #include "xfa/fxfa/parser/cscript_eventpseudomodel.h"
@@ skipping 251 matching lines @@
 
   CFX_WideString wsInteractive;
   CXFA_Node* pPresent = pConfig->GetFirstChildByClass(XFA_Element::Present);
   if (!pPresent)
     return FALSE;
 
   CXFA_Node* pPDF = pPresent->GetFirstChildByClass(XFA_Element::Pdf);
   if (!pPDF)
     return FALSE;
 
-  CXFA_Node* pInteractive = pPDF->GetChild(0, XFA_Element::Interactive);
-  if (pInteractive) {
+  CXFA_Node* pFormFiller = pPDF->GetChild(0, XFA_Element::Interactive);
+  if (pFormFiller) {
     m_dwDocFlags |= XFA_DOCFLAG_HasInteractive;
-    if (pInteractive->TryContent(wsInteractive) &&
+    if (pFormFiller->TryContent(wsInteractive) &&
         wsInteractive == FX_WSTRC(L"1")) {
       m_dwDocFlags |= XFA_DOCFLAG_Interactive;
       return TRUE;
     }
   }
   return FALSE;
 }
 
 CXFA_LocaleMgr* CXFA_Document::GetLocalMgr() {
   if (!m_pLocalMgr) {
@@ skipping 132 matching lines @@
       if (!mIDMap.Lookup(FX_HashCode_GetW(wsID, false), pProtoNode)) {
         continue;
       }
     }
     if (!pProtoNode)
       continue;
 
     MergeNode(this, pUseHrefNode, pProtoNode);
   }
 }