Bumping gaia.json for 4 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/302b622d781c
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #11173 from gasolin/issue-887670sdp

Bug 887670 - [Test][System] Unit test for SpinDatePicker, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/67564a09ab9e
Author: gasolin <gasolin@gmail.com>
Desc: Bug 887670 - [Test][System] Unit test for SpinDatePicker

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https://hg.mozilla.org/integration/gaia-central/rev/ae21684b855f
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #11152 from gasolin/issue-887670vp

Bug 887670 - [Test][System] Unit test for Value Picker, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/fd6ac317518a
Author: gasolin <gasolin@gmail.com>
Desc: Bug 887670 - [Test][System] Unit test for Value Picker
Bug 869768 - Part 1: Add interface for roaming preference (IDL). r=hsinyi. sr=mounir
Bug 869768 - Part 2: Add interface for roaming preference (DOM). r=bugs
Bug 869768 - Part 3: RIL implementation for roaming preference. r=hsinyi
Remove unneeded 'nativeOwnership': 'refcounted' annotations, no bug
Backout 4c89002460da (Bug 873378) for breaking the settings app on B2G
Bug 898545 - Get rid of simple touch rule, and make the simple rule use bigger targets when possible. r=marcoz
bug 886816 fix share icon on retina display, r=mconley
bug 887319 fix chat window control icons for retina display, r=mconley
Bug 898170 - Skip login manager event handlers in e10s mode (r=felipe)
Bug 898170 - Avoid swapping docshells in e10s mode (r=felipe)
Bug 891954 - Skip Necko IPC security checks for desktop Firefox (r=jduell)
Bug 898170 - contentTitle should default to empty string (r=felipe)
Bug 898170 - Don't remove listeners after their message manager is gone (r=felipe)
Bug 898170 - nsIWebProgress.isToplevel should be true when not notifying listeners (r=billm)
Bug 898120 - Fix leak of global variable in Metro selection code [r=jimm]
Bug 896097 - Hide Metro overlay buttons during autocomplete [r=sfoster]
Bug 898621 - Convert ToClampedIndex to take a Handle; r=sfink

--HG--
extra : rebase_source : e35c48ad93c609fdb2e670f34eda718902c5b5ed
Bug 898617 - Assert that the error reporter callback does not set an exception; r=billm
Bug 896199 - Add event queue for Robocop; r=margaret