Uses that drop shadow for the navigation popup used for long press.

Fixes a small bug where the "Show all history" item in the
navigation popup was showing chrome://history because it was
using the wrong constructor param ordering (added a test).

BUG=800033

Change-Id: I84f60d0e7d67e86aa473b435ee63ededc5ee09f7
Reviewed-on: https://chromium-review.googlesource.com/1217362
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590124}