mod_image_for_test.sh now passes the target architecture to the subscripts
mod_for_test_scripts/710enableAuthTesting generates the /etc/fake_root_cert
databases by running nsscertutil under QEMU.
BUG=3310
TEST=Built autotest enabled images for x86 and arm. On arm, the browser no
longer crashes trying to read the fake root certs.
Review URL: http://codereview.chromium.org/2878033
After discussing with drewry, we can't come up with a better way to inject these root certs. We considered putting them on the stateful partition, but that opens up an avenue of attack (if you can get a root cert into the magic directory, then you can MITM login). Thus, we put it on the rootfs instead. The script that sets up the hashes for vboot will verify that this directory is not present in production images. That work is tracked here: http://code.google.com/p/chromium-os/issues/detail?id=2693
Review URL: http://codereview.chromium.org/1566055
