return DocumentExpired when a Deferred document has expired accessTok… #122

Job	Run time
Build	3m 17s
unit-tests	1m 54s
android-tests (26, google_apis, x86_64)	10m 55s
android-tests (33, google_apis, x86_64)	12m 12s
Publish SNAPSHOT to sonatype.org	1m 57s
	30m 15s

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