Migrate TLS 1.2 and below state machines to the new style.

Bug: 128
Change-Id: Ief3779b1c43dd34a154a0f1d2f94d0da756bc07a
Reviewed-on: https://boringssl-review.googlesource.com/19144
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/CMakeLists.txt

diff --git a/ssl/CMakeLists.txt b/ssl/CMakeLists.txt
index d9d2eb5..912327b 100644
--- a/ssl/CMakeLists.txt
+++ b/ssl/CMakeLists.txt
@@ -11,6 +11,7 @@
   d1_srtp.cc
   dtls_method.cc
   dtls_record.cc
+  handshake.cc
   handshake_client.cc
   handshake_server.cc
   s3_both.cc