am 65c69837: Fix x86_64 build

* commit '65c69837295af8f114f03897163ae24ab5e0ff71':
  Fix x86_64 build
tree: 921d9be8599e7b24bca120a5e89df893f136ac49
  1. core/
  2. fpdfsdk/
  3. AUTHORS
  4. LICENSE
  5. pdfium.gyp