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When an URL of a print server is specified with ipp/ipps schema and
without a port number, ChromeOS tries to contact the server on port 80.
It is caused by the fact that internally URLs are stored as http/https
based versions (because of GURL limitations). This patch solves the
problem by improving conversion between http(s) and ipp(s).

BUG=none
TEST=tested on nautilus

Change-Id: I19c55ece15a07103556c882caa56ed77b45bac1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1780073
Commit-Queue: Sean Kau <skau@chromium.org>
Reviewed-by: Sean Kau <skau@chromium.org>
Auto-Submit: Piotr Pawliczek <pawliczek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#694603}