Explicitly use binary mode when opening files in the pdfium_test sample.
-rw-r--r-- 12 .gitattributes
-rw-r--r-- 156 .gitignore
-rw-r--r-- 796 AUTHORS
-rw-r--r-- 34794 BUILD.gn
-rw-r--r-- 1553 LICENSE
-rw-r--r-- 72 README
drwxr-xr-x - build
-rw-r--r-- 509 codereview.settings
drwxr-xr-x - core
drwxr-xr-x - fpdfsdk
-rw-r--r-- 37305 pdfium.gyp
drwxr-xr-x - samples