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Upgrade to Chrome 54 #239
referenced this pull request
Jan 3, 2017
This branch will (most likely) be merged and released this month in Electron 1.5.0, but there will be releases before that done from master and released as Electron 1.4.x.
So if it is easier to do what you are trying to do against Chrome 54 and that timeline works for you then building against this branch is fine.