Simplify the pointer management around do_ssl3_write.

It's still rather a mess, but this is at least somewhat clearer. The old one
had a lot of remnants of compression, etc.

Change-Id: Iffcb4dd4e8c4ab14f60abf917d22b7af960c93ba
Reviewed-on: https://boringssl-review.googlesource.com/4233
Reviewed-by: Adam Langley <agl@google.com>
2 files changed