To let fragment's view lifecycle owner passed in to controllers.
For UI usage, view lifecycle owner is the best choice, controller could
use this lifecycle owner to observe events and do UI related works.
Usage DataSaverController as first example.
Bug: 287005021
Test: Manually for DataSaverController
Change-Id: Id965ea3a24d61f4d0ec6735632944f41f72ba06a
DataSaverController currently used in 2 pages,
- Network & internet > Data Saver
- Apps > Special app access
This helps unify the logic, and instead of showing on "Special app
access", this summary shows on "Unrestricted data" is make more sense.
Bug: 280280596
Test: Manually on above pages
Test: Unit test
Change-Id: Ia151ed8179a250f8f20cc5041f9383fffebdab10
