63b253d90 expose max depth on Window (flutter/engine#10414) (#37543)

git@github.com:flutter/engine.git/compare/960501721b23...63b253d907b9

git log 960501721b23..63b253d907b9 --no-merges --oneline
2019-08-03 dnfield@google.com expose max depth on Window (flutter/engine#10414)

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bin/internal/engine.version

-960501721b233150ae8695da2a3a0f401bee087c
+63b253d907b953d4b7b3e0039cddace54759d249