Backed out changeset 9a867e5a4ef5 (bug 895417) for suspicion of causing OSX asserts.
Bug 895417 - Fix refpoint coordinates sent to child processes, r=kats
Backed out changesets 4f35e943f939 and da5fa63e90cb (bug 896250) for causing frequent OSX debug asserts on a CLOSED TREE.
Merge m-c to birch.
Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/15b9a5231e9e
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #11161 from huchengtw-moz/media/Bug_891797-2

Bug 891797 - [OTA][Data Migration][MediaDB] Data of Gallery, Video, and ...r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/17e4246eac8d
Author: John Hu <johu@mozilla.com>
Desc: Bug 891797 - [OTA][Data Migration][MediaDB] Data of Gallery, Video, and Music app is different than original after update from v1.0.1 to v1.1.0.