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The Goodies page has moved, so need to update the manifest to match.
Also adding in URL pattern for staging location for Goodies webpages.

BUG=chromium:741952
TEST=browser test

Change-Id: Id1f71cb4bb6a65605a6ec6ff7cefd973a9487b35
Reviewed-on: https://chromium-review.googlesource.com/577724Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488233}