Implement SSL server socket over OpenSSL.

1) Mixed ssl_server_socket_nss.cc and ssl_client_socket_openssl.cc.
2) Moved common functions into openssl_util.cc.
3) Enabled SslServerSocketTest when USE_OPENSSL is defined.

BUG=

Review URL: https://codereview.chromium.org/274783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271218 0039d316-1c4b-4281-b951-d872f2087c98
13 files changed