Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/10d7e810b862
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #20938 from pivanov/bug-1029659

Bug 1029659 - [browser] X next to search bar appears oversized

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https://hg.mozilla.org/integration/gaia-central/rev/73a76d0383b0
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1029659 - [browser] X next to search bar appears oversized

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https://hg.mozilla.org/integration/gaia-central/rev/8f37209d7646
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #21043 from vingtetun/bug1028543

Bug 1028543 - Fixed issue by checking that stopTone function exists. r=v...

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https://hg.mozilla.org/integration/gaia-central/rev/cec1483fa7f6
Author: Camel Aissani <camel.aissani@nuageprive.fr>
Desc: Bug 1028543 - Fixed issue by checking that stopTone function exists. r=vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/09881f7860cd
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #20843 from Freddy03h/test-local

Bug 984146 - Prototype mutation makes code run slowly

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https://hg.mozilla.org/integration/gaia-central/rev/77c26baccfee
Author: freddy <freddy03h@gmail.com>
Desc: Bug 984146 - Prototype mutation makes code run slowly r=21
Bumping manifests a=b2g-bump