A lot of functions in gclient_utils and elsewhere will be deleted.

Not used yet, committed as a separate change so it can be rubberstamped. :)

R=dpranke@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6711080

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@79449 0039d316-1c4b-4281-b951-d872f2087c98