Bugt 908698 - Update gaia_unit to use new xulrunner_sdk
Bugt 908698 - Update gaia_unit to use new xulrunner_sdk

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branch : production

lundjordan/mozharness,simar7/build-mozharness,lissyx/build-mozharness,mrrrgn/build-mozharness,kartikgupta0909/mozilla-mozharness,escapewindow/mozharness,escapewindow/mozharness,mozilla/build-mozharness,mrrrgn/build-mozharness,kartikgupta0909/gittest,kartikgupta0909/build-mozharness,kartikgupta0909/build-mozharness,armenzg/build-mozharness,walac/build-mozharness,armenzg/build-mozharness,lundjordan/mozharness,mozilla/build-mozharness,simar7/build-mozharness,lissyx/build-mozharness,kartikgupta0909/mozilla-mozharness,kartikgupta0909/gittest,walac/build-mozharness