Including touchscreen events report in feedback

I think when we migrate from using
src/platform/userfeedback/etc/sys_log_utils.sysinfo.lst
to hard-coded entries in
command_line_log_source.cc
we missed the entry for collecting touchscreen events.
This patch adds it back.

BUG=234237
TEST=1. Go chrome://system, check entry exists
        hack-33025-touchscreen_activity
     2. File a feedback, and check that the above entry is in the
        feedback report.

Review URL: https://chromiumcodereview.appspot.com/14166006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@195624 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed