Summary:
- Local patches for bug 1504656 and bug 1513934 are now present upstream.
- Patch for bug 1172609 needed to be rebased to apply cleanly.
- Update patch for bug 1172609 to follow new static mutex handling in ICU.
Reviewers: jwalden
Reviewed By: jwalden
Bug #: 1533481
Differential Revision: https://phabricator.services.mozilla.com/D25263
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extra : rebase_source : 2e1d2974394e336d714b16642dd9d02b226300c2