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This adds the new CSS file and makes more resources
available to the NTP.

Change-Id: Iee5435ddb3f26e153628ccdcff0032efe29bed50
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2363566Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799750}