mdoucleff e198667251 Add flag to CachedContentIndex to disable encryption. This allows the encryption feature
to be disabled gracefully: encrypted index files may be read, but plaintext will be written.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=165196508
2017-09-09 00:35:00 +01:00
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