Merge changes from topics "presubmit-am-05782e383e7a4fee928aa6b9497f8a31",...

Merge changes from topics "presubmit-am-05782e383e7a4fee928aa6b9497f8a31", "presubmit-am-c64ae8cdc8804ce0911b23e11dd3f75a", "presubmit-am-fa4c6ce0af1c4d889565019c10d85833" into tm-dev

* changes:
  Refactor decision logic out of storage classes (2/2)
  Refactor decision logic out of storage classes (1/2)
  Refactor PermissionDecision to extend generic event