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

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https://hg.mozilla.org/integration/gaia-central/rev/2150a79e8cc8
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #26945 from etiennesegonzac/bug-112574

Bug 112574 - AppWindow that |will-become-inactive| should still resize. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/f3170b7570a7
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 112574 - AppWindow that |will-become-inactive| should still resize. r=alive
Bumping manifests a=b2g-bump