user_activity: Added some parameters to the Dremel SQL scripts.

Used --min_completion_ration=1.0 to to ensure that Dremel queries all
available data and --sql_dialect=GoogleSQL to set up the dialect.
Added session_count > 2000 to extract only the busy profiles.
Added Chrome version as an argument in the command line.

BUG=None
TEST=None

Change-Id: I990499325f8e81ec0ea583077134f1416b56797a
Reviewed-on: https://chrome-internal-review.googlesource.com/294918


Tested-by: Evelina Dumitrescu <evelinad@google.com>
Commit-Queue: Evelina Dumitrescu <evelinad@google.com>
Reviewed-by: Evelina Dumitrescu <evelinad@google.com>
Reviewed-by: Luis Lozano <llozano@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/435917


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