[Chromeshine] Create a PageViewObserver from ChromeTabbedActivity

This will start tracking per-domain start and stop events for Q devices

Bug: 920503
Change-Id: Iacefed19a7371d0921fed6d9167eb29f7cd1550d
Reviewed-on: https://chromium-review.googlesource.com/c/1415931
Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Patrick Noland <pnoland@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623525}
1 file changed