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

========

https://hg.mozilla.org/integration/gaia-central/rev/456cbcb07cdb
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #10780 from huchengtw-moz/hd/Bug_881158_for_master

Bug 881158 - hdpi/xhdpi resolution assets and layout for Video app, r=@rexboy, r=@dale

========

https://hg.mozilla.org/integration/gaia-central/rev/31d78ed3e9b1
Author: John Hu <johu@mozilla.com>
Desc: Bug 881158 - hdpi/xhdpi resolution assets and layout for Video app
Bumping gaia.json for 2 gaia-central revision(s)

========

https://hg.mozilla.org/integration/gaia-central/rev/b776c306597b
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #10735 from EdgarChen/bug_874769_iccHelper

Bug 874769 - [Gaia] Use new WebAPI to access card state related attribute/event

========

https://hg.mozilla.org/integration/gaia-central/rev/72e753ff1e85
Author: Edgar Chen <echen@mozilla.com>
Desc: Bug 874769 - Use IccHelper to access card state. r=salva,etienne,arcturus,alive,arthurcc
Bug 874744 - Part 1: Move card state related attribute/event from mozMobileConnection to mozIccManager (IDL). r=allstars.chh. sr=sicking
Bug 874744 - Part 2: Move card state related attribute/event from mozMobileConnection to mozIccManager (DOM). r=bugs
Bug 874744 - Part 3: Send cardstatechange event to iccManager. r=allstars.chh
Bug 874744 - Part 4: Marionette tests for cardstate. r=allstars.chh
Bug 888323 - Stop including prtime.h in nsrootidl.idl. r=ehsan
bug 870370: EXTRA_COMPONENTS cleanup for conversion patches #1 & #2.
Bug 886101 - Only int32-specialized bitwise ops should be marked safe in parallel. (r=nmatsakis)
Bug 886102 - Ignore idempotency for parallel ICs. (r=nmatsakis)
Bug 887921 - Don't toggle GC write barriers in parallel execution. (r=sstangl)
Bug 888837 - Fix tagging of callee token in arguments rectifier. (r=jandem)
Bug 888470 - Sweep parallelStringConcatStub_. (r=djvj)
Bug 889825 - Eliminate more bounds checks when double arrays are used. r=h4writer
Bug 860085 - Use an AutoPushJSContext in XPCCallContext instead of doing it manually. r=gabor
Bug 860085 - Rename xpc::{Push,Pop}JSContext and make them assert against DOM JSContexts. r=gabor
Bug 860085 - Remove unused AutoPopJSContext. r=gabor
Bug 860085 - Make XPCJSContextStack manipulators private to enforce that we go through the RAII classes. r=gabor

With this change, we can be very, very sure that we never push an nsJSContext
without instantiating an AutoCxPusher on the stack.
Bug 860085 - Stop using XPConnect::ReleaseJSContext in nsJSEnvironment::DestroyJSContext. r=gabor,mccr8

We now have the invariant that any in-use cx must be pushed onto the JSContext
stack with one of our stack-scoped automatic nsCxPusher classes. These classes
hold a strong ref to the nsIScriptContext associated with the JSContext they
push (if any). This means that, if this cx is in use, we will always have at
least one strong reference to the nsJSContext coming from the stack, meaning
that neither the destructor nor the Unlink() implementation will be called.
So we don't need to do any deferred destruction of the cx anymore.
Bug 860085 - Remove nsIXPConnect::ReleaseJSContext. r=gabor