381f879ff728a72a9653fb84971a9ffe9a65c2ce
[ Merge of http://go/wvgerrit/154575 ] [ Cherry-pick of http://ag/19498242 ] There is a rare race condition experienced by some Android devices where the a new client property set is being added while another is being removed. The C++ stl library does not provided thread protection by default. This CL adds a new mutex for the client property set map which prevents multiple threads accessing the property sets concurrently. Bug: 235238226 Test: GtsMediaTestCases on redfin Change-Id: I32cf11bfb1332295ba1245071102ff0adc35259d (cherry picked from commitaaa97a5d60) (cherry picked from commit6109ec6d66)
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