GitLab

Write equivalent tests to verify task manager behavior for
NoStatePrefetch and delete them from the Prerender test suite.

Please see this spreadsheet for details:
https://docs.google.com/spreadsheets/d/1LFPB4UhPWQkBRz481lz49zmS25znhjSDUtagtTTSPQo/edit?usp=sharing

Bug: 898955
Change-Id: Ibdb1d1996cfcb6866ee6cc257e5992e32e3bcd23
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299235Reviewed-by: Ryan Sturm <ryansturm@chromium.org>
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Cr-Commit-Position: refs/heads/master@{#789916}