user_activity: Updated the extracted fields from the data collection scripts.

Added the inclusive count fields for the inclusive count statistics.
Renamed inclusive_count_fraction to inclusive_count for the pairwise
inclusive statistics.

BUG=None
TEST=None

Change-Id: Iac7d9a55443448ab32765039803a9e3e069c49ac
Reviewed-on: https://chrome-internal-review.googlesource.com/291203


Reviewed-by: George Burgess <gbiv@google.com>
Reviewed-by: Luis Lozano <llozano@chromium.org>
Reviewed-by: Evelina Dumitrescu <evelinad@google.com>
Commit-Queue: Evelina Dumitrescu <evelinad@google.com>
Tested-by: Evelina Dumitrescu <evelinad@google.com>
Reviewed-on: https://chromium-review.googlesource.com/435913


Commit-Ready: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>