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- Adding an horizontal Separator between the list of apps and the "Rememeber
my choice" checkbox.
- Adjusting the row size for app candidates from 40 to 32, reducing the
icon from 20 to 16 pt.
- Changing the color of the InkDrop from black to gray.

Bug: 678141
Test: Manually checked the UI. Build
Change-Id: I5697d0aa3e0aa2b2f2b2e9cb627061c43c74f587
Reviewed-on: https://chromium-review.googlesource.com/825963Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: David Jacobo <djacobo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523962}