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This prevents appearing default Play Store icon on the shelf for AOSP
images.

Test: Unit test + manually
Bug: b/36133646
Change-Id: I90d05513d98c57a7ec514b66a8b468255434e841
Reviewed-on: https://chromium-review.googlesource.com/580646Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Yury Khmel <khmel@google.com>
Cr-Commit-Position: refs/heads/master@{#488705}