Support fetching resources over HTTPS

[GoogleCodeExporter]

I've attached a patch against revision 1533 that supports fetching resources 
over HTTPS.  In particular, this patch:

1.) Updates dependencies to use serf 1.0.3.
2.) Adds a dependency on OpenSSL in Chromium's OpenSSL GIT repository.
3.) Adds HTTPS support to the URL fetcher.
4.) Adds minimal support for SSL certificate error detection (which could be 
enhanced for customization in a future patch).  Right now, self-signed 
certificate and unknown certificate authority errors are allowed, while expired 
certificate, certificate not active, and unknown errors are not allowed.
5.) Refines the logic in the rewrite driver with respect to fetcher HTTPS 
support.
6.) Changes the domain lawyer to allow origin domains to be mapped to/from 
http/https.
7.) Updates Google's customizations of the serf library.
8.) Adds some source files in serf that are required for SSL support.
9.) Updates HTTPS tests.

If this patch gets committed, then I'll do work on customizing which SSL errors 
are acceptable as well.

Thanks.

Original issue reported on code.google.com by surfacep...@gmail.com on 21 Apr 2012 at 12:17

Attachments:

• mod_pagespeed_https_support.diff