Relanding Porting of HKDF changes from server.

Added a2b_hex function to move common code in hkdf_unittest.cc
and to make it similar to CL - 40300624.

Merge internal CL: 40300624

Original approved CL: https://chromiumcodereview.appspot.com/12326029/

[email protected], [email protected]

Review URL: https://chromiumcodereview.appspot.com/12335045

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@184306 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed