Moving ViewCaptureRule to inside of FailureWatcher

Goal: ViewCaptureRule finishes recording before FailureWatcher starts saving
  artifacts, including view capture.

Also starting recoding without waiting for activity creation if there is
already a Launcher activity.

Test: local, presubmit
Flag: N/A
Bug: 286251603
Change-Id: I191d3cdde76e9f906453b20325862f2bcff9024c