Log message when XFA load fails

samples/pdfium_test.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <list>
@@ skipping 273 matching lines @@
     doc = FPDF_LoadCustomDocument(&file_access, NULL);
   } else {
     printf("Linearized path...\n");
     doc = FPDFAvail_GetDocument(pdf_avail, NULL);
   }
 
   (void) FPDF_GetDocPermissions(doc);
   (void) FPDFAvail_IsFormAvail(pdf_avail, &hints);
 
   FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks);
-  FPDF_LoadXFA(doc);
+  if (!FPDF_LoadXFA(doc)) {
+    printf("LoadXFA unsuccessful, continuing anyway.\n");
+  }
   FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD);
   FPDF_SetFormFieldHighlightAlpha(form, 100);
 
   int first_page = FPDFAvail_GetFirstPageNum(doc);
   (void) FPDFAvail_IsPageAvail(pdf_avail, first_page, &hints);
 
   int page_count = FPDF_GetPageCount(doc);
   for (int i = 0; i < page_count; ++i) {
     (void) FPDFAvail_IsPageAvail(pdf_avail, i, &hints);
   }
@@ skipping 102 matching lines @@
     } else {
       RenderPdf(filename, pBuf, len, format);
     }
     free(pBuf);
   }
 
   FPDF_DestroyLibrary();
 
   return 0;
 }