Update XFA fpdfsdk to match master

fpdfsdk/src/javascript/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 "Document.h"
 
 #include "Field.h"
 #include "Icon.h"
@@ skipping 761 matching lines @@
   pEnv->JS_docmailForm(NULL, 0, bUI, cTo.c_str(), cSubject.c_str(), cCc.c_str(),
                        cBcc.c_str(), cMsg.c_str());
   pRuntime->EndBlock();
 
   return TRUE;
 }
 
 FX_BOOL Document::author(IJS_Context* cc,
                          CJS_PropValue& vp,
                          CFX_WideString& sError) {
-  ASSERT(m_pDocument != NULL);
-
   CPDF_Dictionary* pDictionary =
       m_pDocument->GetDocument()->GetPDFDoc()->GetInfo();
   if (!pDictionary)
     return FALSE;
 
   if (vp.IsGetting()) {
     vp << pDictionary->GetUnicodeText("Author");
     return TRUE;
   } else {
     if (!m_pDocument->GetPermissions(FPDFPERM_MODIFY))
       return FALSE;
 
     CFX_WideString csAuthor;
     vp >> csAuthor;
     pDictionary->SetAtString("Author", PDF_EncodeText(csAuthor));
     m_pDocument->SetChangeMark();
     return TRUE;
   }
 }
 
 FX_BOOL Document::info(IJS_Context* cc,
                        CJS_PropValue& vp,
                        CFX_WideString& sError) {
-  ASSERT(m_pDocument != NULL);
-
   CPDF_Dictionary* pDictionary =
       m_pDocument->GetDocument()->GetPDFDoc()->GetInfo();
   if (!pDictionary)
     return FALSE;
 
   CFX_WideString cwAuthor = pDictionary->GetUnicodeText("Author");
   CFX_WideString cwTitle = pDictionary->GetUnicodeText("Title");
   CFX_WideString cwSubject = pDictionary->GetUnicodeText("Subject");
   CFX_WideString cwKeywords = pDictionary->GetUnicodeText("Keywords");
   CFX_WideString cwCreator = pDictionary->GetUnicodeText("Creator");
@@ skipping 1006 matching lines @@
   CFX_DWordArray DelArray;
 
   for (int j = DelArray.GetSize() - 1; j >= 0; j--) {
     m_DelayData.RemoveAt(DelArray[j]);
   }
 }
 
 CJS_Document* Document::GetCJSDoc() const {
   return static_cast<CJS_Document*>(m_pJSObject);
 }