fc27f80a1 1. Update license files to account for the new Dart License file (flutter/engine#11364) (#39028)

git@github.com:flutter/engine.git/compare/3c695b131ce7...fc27f80a1242

git log 3c695b131ce7..fc27f80a1242 --no-merges --oneline
2019-08-22 a-siva@users.noreply.github.com 1. Update license files to account for the new Dart License file (flutter/engine#11364)

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