chromium/testing/buildbot/filters/ios.content_unittests.filter

# TODO(crbug.com/40949065): Flakily fails a check.
-IndexedDBQuotaClientTest.DeleteBucketMixedParty/0
-IndexedDBQuotaClientTest.DeleteBucketMixedParty/1
-IndexedDBQuotaClientTest.DeleteBucketCustom/0
-IndexedDBQuotaClientTest.DeleteBucketCustom/1
-IndexedDBQuotaClientTest.DeleteBucketThirdParty/0
-IndexedDBQuotaClientTest.DeleteBucketThirdParty/1