Yao Chen 5c10cb48a9 Fix a bug in saving local history of the metrics report.
A condition was reversed in code refactoring during previous code review.

Test: unit tests added for all 4 combination cases.
Bug: 134417583
Change-Id: Id79a827ec7a5404b9006769f9595de773b4724ef
2019-06-03 15:02:30 -07:00
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