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

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https://hg.mozilla.org/integration/gaia-central/rev/497fd0db28c8
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Merge pull request #29699 from ferjm/bug1155758.aboutserviceworkers

Bug 1155758 - Make about:serviceworkers work in B2G. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/6c00945525f0
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Bug 1155758 - Make about:serviceworkers work in B2G. r=alive, arthurcc

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e435a56f4a191b19311a582765b511b32cf88087", 
+        "git_revision": "43f1ab4d599c666c74f555e79cd4a1845598e3ec", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "860094f92ce4422a8ff44fcf142b180954a295cb", 
+    "revision": "497fd0db28c88f3347d7b87f6b78b3cf24b1669f", 
     "repo_path": "integration/gaia-central"
 }