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This patch enables the Minikin hyphenation engine on all
platforms except Mac. Mac keeps using the engine in the OS.

Intent to ship:
https://groups.google.com/a/chromium.org/g/blink-dev/c/sIRXYKA4jGE/m/44YfDTNkAwAJ

Test expectation changes are:
* Linux/Win support `hyphens: auto` as a valid CSS.
* Unskip tests that require `hyphens: auto` on Linux/Win.
* Some Mac-only failures now fail on all platforms.
* Triaged 1 new failure on Linux and 2 on Windows. The causes
  are existing ones, but results vary by platform as tests
  rely on fonts and dictionaries. I'll review existing issues.

Note, |web_tests| and |content_shell| use the dictionaries in
the repository (r818216 crrev.com/c/2478122), while in
Chromium, the [component updater] downloads the dictionaries
(r816137 crrev.com/c/2437314) and passes to the engine when
they become ready (r817902 crrev.com/c/2462893).

[component updater]: https://chromium.googlesource.com/chromium/src/+/master/components/component_updater/README.md

Bug: 652964
Change-Id: I82e3df40ea59256aa61de24bce4be39870e85adb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2315564Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818370}