Merge changes Ib92caadd,I10342c9f,I49a6499a,I81177783,I434a3b1d, ... into main

* changes:
  On negative user action, cancel the install
  Handle uninstall result - caller does not want the result back.
  Handle uninstall result - Caller wants result back
  Initiate uninstall on confirmation from the user
  Introduce a receiver for ACTION_UNINSTALL_COMMIT broadcast
  Show user prompt for uninstall
  Compute app data size in case of fragile user data
  Compute dialog message when target user is different from current user
  Generate data for user confirmation snippet
  Handle uninstall abort case and show appropriate dialog
  Introduce an interface to listen to user actions while uninstalling
  Add additional checks on received uninstall request
  Process the incoming uninstall intent to this app