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

========

https://hg.mozilla.org/integration/gaia-central/rev/7c0504882446
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #13889 from ochameau/perms

Bug 930104 : Only set frame app id to top level firefox tab iframe (i.e <xul:browser/>) r=kgrandon

========

https://hg.mozilla.org/integration/gaia-central/rev/45ba597eb970
Author: Alexandre Poirot <poirot.alex@gmail.com>
Desc: Bug 930104 : Only set frame app id to top level firefox tab iframe (i.e. <xul:browser/>) r=kgrandon