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

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https://hg.mozilla.org/integration/gaia-central/rev/77da873dcb32
Author: Min-Zhong "John" Lu <jlu@mozilla.com>
Desc: Merge pull request #26838 from mnjul/bug_1112416_rocketbar_app_inputmgnt_racing

Bug 1112416 - Fix racing of InputMgmt/KBApp when switching from RocketBar to other app. r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/05564b3790e6
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1112416 - Fix racing of InputMgmt/KBApp when switching from RocketBar to other app

- Through a flag in InputWindow, do not really set the iW as inactive during iW's inputapp-closed event if we know it will become ready soon.
- Also, AppTransitionController should not automatically setVisible(false) for InputWindow on "closed".
Bumping manifests a=b2g-bump