Implement TLS 1.2.

Patch by Adam Langley.

R=agl@chromium.org
BUG=90392
TEST=net_unittests

Review URL: https://chromiumcodereview.appspot.com/14772023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203090 0039d316-1c4b-4281-b951-d872f2087c98
18 files changed