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

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https://hg.mozilla.org/integration/gaia-central/rev/f42e47a5c154
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #18386 from gurumukhi/patch-12

Bug 973484 - Remove workaround of bug 783076, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/cd1eee4a801c
Author: Ram Dayal Vaishnav <vaishnav.rd@gmail.com>
Desc: Bug 973484 - Remove workaround of bug 783076
Bumping manifests a=b2g-bump
Bug 949325 - C++ wrapper to support DataStore API on the worker (part 1, C++ stubs for DataStore and DataStoreCursor). r=baku,ehsan

--HG--
rename : dom/datastore/DataStoreCursor.jsm => dom/datastore/DataStoreCursorImpl.jsm
rename : dom/datastore/DataStore.jsm => dom/datastore/DataStoreImpl.jsm
Bug 991134 - Output an additional failure line for loadfailed: null failures to make bug 789751 and bug 720452 TBPL starable; r=dbaron
Bug 997006 - rename text-combine-horizontal to text-combine-upright. r=dholbert
Bug 996929 - Implement OptimizeSourceSurface for all Moz2D backends. r=Bas
Bug 877193 - Reduce memory usage for RTSP streaming. r=sworkman
Bug 898963 - Odinmonkey (ARM): Optimize asm.js FFI calls to Ion functions, trim regs saved, inline activation and deactivation. r=luke
Bug 898963 - Odinmonkey (ARM): Refactor GenerateFFIInterpreterExit. r=luke
Bug 995411 - Update clobber file to fix bustage. r=bustage on a CLOSED TREE
Bug 996881: Inherit 'use strict' directive when calling toSource/toString for asm.js modules; r=luke

--HG--
extra : rebase_source : 63ed080e38be66583c205d930b147bb1e2c66d2c
Bug 981281 - Ctrl+left/right arrow skips words with leading/trailing punctuation with layout.word_select.stop_at_punctuation=false. r=mats

test3/test4 are copies of test1/test2 tweaked for stop_at_punctuation=false.
Bug 981477 - Re-enable globally-disabled reftests on B2G that actually pass. r=ahal
Bug 997208 - Remove unnecessary nullptr checks before deleting in content/media. r=cajbir
Bug 613659 - Fix B2G build error. r=me
Bug 964613 - check userfont sets for enabled/disabled local fonts when platform fontlist changes occur. r=jfkthame
Bug 993478 - Let a user select docroot for the webserver, r=jgriffin
bug 993591 - PSM HTTP Fetch should own streamloader data r=dkeller r=mayhemmer
Bug 997067 - Build BuildURIFromBase into SecurityCheckURL and condense logic. r=bz

This has a tiny behavior change in the case of self-navigation by a non-current
inner, but I think that the new behavior is more correct.
Bug 997067 - Remove the special behavior for chrome navigating non-chrome windows. r=bz

Considering what is actually done with sourceWindow here, I don't think this
check is doing anything useful in the modern world.