Merge changes from topic "am-6110a845c4f24db4810f01b6d24bdfff"
* changes:
[automerger skipped] Merge changes from topic "b204127880_pipeline_backport_1" into sc-v2-dev am: 8693114f9e am: 260bae03c5 -s ours
[automerger skipped] Make FeatureFlagManager Dumpable am: 4d9465b028 am: 89e49eea8b -s ours
[automerger skipped] New Pipeline: Implement lifetime extension for guts am: f7ec42ff8d am: c0876d8902 -s ours
[automerger skipped] Add ListenerSet and use in places which currently copy-on-iterate. am: 6a9caed07f am: 93b06dea92 -s ours
[automerger skipped] Populate buckets to ensure correct corner rounds on notifications am: 4ddf9d094c am: b6f9caac8b -s ours
[automerger skipped] Enabled x button for clearable silent Notif[s] am: 5e6673f96a am: 8ebb9d3371 -s ours
[automerger skipped] New pipeline: Section manager is old pipeline, so don't call it for the new. am: 61499496b1 am: 80633cee5a -s ours
[automerger skipped] Remove dismiss-rtl setters because dismiss is bidirectional am: 53f489d7b0 am: 6a2193edf8 -s ours
[automerger skipped] New pipeline: remove non-silent section headers am: caf2293885 am: 34ba6483e2 -s ours