Firestore: Improve efficiency of memory persistence when processing a large number of writes #13572
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Replace
std::vectorwithstd::dequeso that erasing the first element does not incur O(n) cost, as when erasing the entire vector this inefficiency results in O(n^2) cost. Googlers see b/364354267 and cl/671065694 for details.The port to JS and Android is tracked by b/365092047 (only Googlers can see this)