chrome: Move chrome/test/ out of chrome namespace.

From discussion on chromium-dev, it was decided to remove 'chrome'
namespace.

Bug: 289619
Change-Id: Icb4145774fbb42cb859fb55ec5899c733eac61e4
Reviewed-on: https://chromium-review.googlesource.com/771490
Reviewed-by: Scott Violet <[email protected]>
Commit-Queue: srirama chandra sekhar <[email protected]>
Cr-Commit-Position: refs/heads/master@{#517010}
13 files changed