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This CL adds a View in store link row that links to the extension home
page as well as a link row for the Chrome Web Store page for the extension.

Bug: 794286
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I06a8c078f0659adc3c69e6139133ec9cf6a81d9a
Reviewed-on: https://chromium-review.googlesource.com/826473
Commit-Queue: Dave Schuyler <dschuyler@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524325}