Roll DomDistillerJS
Picked up changes:
c285a7e Add content_image field to protobuff for scoring.
BUG=None
Change distiller image fetcher for new protobuff.
The protobuff for the dom distiller changed the way that
image information is transferred. This change updated the code
that uses the images accordingly. The protobuff now contains a
repeated "ContentImage" field instead of repeated string.
The outgoing protobuff "DistilledArticleProto" also changed to
include original image urls in the image list.
BUG=None
Review URL: https://codereview.chromium.org/
732153002
Cr-Commit-Position: refs/heads/master@{#304723}