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This change restores sizes coverage of mini_installer.exe, setup.exe,
chrome_proxy.exe, elevation_service.exe, and
notification_helper.exe. Coverage was lost during the migration to
//tools/binary_size/sizes.py. It is restored by adding a missing
data_dep on the Windows installer and adding some missing files to the
sizes script.

Bug: 930325,961548
Change-Id: I3b30afdd7b8f7c40016dc7c6409a473bac817fc1
CC: jbudorick@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1807236
Auto-Submit: Greg Thompson <grt@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697588}