Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/44645fe5b9e0
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25044 from KevinGrandon/bug_1074028_statusbar_icon_overlap

Bug 1074028 - [Statusbar] Determine width using getBoundingClientRect on the urlbar

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https://hg.mozilla.org/integration/gaia-central/rev/96fbfe2f7813
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1074028 - [Statusbar] Determine width using getBoundingClientRect on the urlbar. r=mhenretty
Bumping manifests a=b2g-bump