Fix link of chrome under GN when pdf_enable_xfa=true
Fix link of chrome under GN when pdf_enable_xfa=true

Otherwise there are errors like:
  ../../third_party/pdfium/third_party/libtiff/tif_jpeg.c:344
  error: undefined reference to 'chromium_ijg_jpeg_read_header'

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1582613003 .

andoma/pdfium,andoma/pdfium,DrAlexx/pdfium,DrAlexx/pdfium,DrAlexx/pdfium,andoma/pdfium,andoma/pdfium,DrAlexx/pdfium