Don't use X509Certificate in SSLConfig.

X509Certificate class depends in OS-dependant APIs and hense cannot
be created inside of sandbox. This change allows specifying
allow_bed_certs when running inside of sandbox.

BUG=80587
TEST=Unittests

Review URL: http://codereview.chromium.org/7401003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@93153 0039d316-1c4b-4281-b951-d872f2087c98
9 files changed