Bumping gaia.json for 1 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d5f4a104c0b7
Author: John Ford <john@johnford.info>
Desc: Revert "Bug 944718 - [Cost Control] Broken access to usage widget from utility tray"

This reverts commit 31bbe151e0d92da77a86a3ae5edb6ca2643968e1.

This is the second time this patch has been backed out.
https://bugzilla.mozilla.org/show_bug.cgi?id=944718
Bug 697343 - Create the results array in the content scope. r=bz

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extra : rebase_source : ae7ae1873dc1f074942858c4d37e3d5916e42223