[Webkit-unassigned] [Bug 189632] New: Clear pending resource load statistics' writes after tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189632

            Bug ID: 189632
           Summary: Clear pending resource load statistics' writes after
                    tests
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wwang153 at stanford.edu

As of now, pending notifications from the resource load observer are not cleared at the conclusion of tests, which can lead to possible bugs where a pending write unintentionally persists into a subsequent test, leading to unexpected results. This is also a speculative fix for the flakiness in the tests here: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2FwebAPIStatistics%2Fnavigator-functions-accessed-data-collection.html%20http%2Ftests%2FwebAPIStatistics%2Fcanvas-read-and-write-data-collection.html%20http%2Ftests%2FwebAPIStatistics%2Ffont-load-data-collection.html%20http%2Ftests%2FwebAPIStatistics%2Fscreen-functions-accessed-data-collection.html 

Regardless of whether or not the flakiness is fixed by this patch, it would be good for and pending writes to be cleared in when resetting the statistics to a consistent state.

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