Add testcase for pdfium:434

PDF originally by cherycherian.

BUG=pdfium:434
TBR=ochang@chromium.org

Review URL: https://codereview.chromium.org/1822183002 .
3 files changed
tree: 51e35707b6f0079f64419ba46f06ea0e0967e3f2
  1. LICENSE
  2. codereview.settings
  3. fx/
  4. pdfium/
  5. third_party/