Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/c1c366c0da96
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24792 from KevinGrandon/bug_971469_system2_instantiable_battery_manager

Bug 971469 - [System2] Instantiable BatteryOverlay

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https://hg.mozilla.org/integration/gaia-central/rev/85434981c8e2
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 971469 - [System2] Instantiable BatteryManager r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/f887803f5ebb
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #24910 from davidflanagan/bug1063658

Bug 1063658: workaround memory-backed blob bug 1079546 by ensuring that ... r=asuth,pdahiya

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https://hg.mozilla.org/integration/gaia-central/rev/dfece0f292c0
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 1063658: workaround memory-backed blob bug 1079546 by ensuring that pick and share activities always use files

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "fb8f27ffe7bb7dbdffa0aa68e9e9ce893a44ab21", 
+    "revision": "c1c366c0da9602bc0d6c0c45df55f70d40b14d3b", 
     "repo_path": "/integration/gaia-central"
 }