Remove UserKey class, move registry-related functions out of string_util.

No intended functionality change, just moving code around.

BUG=none
TEST=none

Review URL: https://codereview.appspot.com/5967043

git-svn-id: http://rlz.googlecode.com/svn/trunk@124 10bc0f33-e4bf-9a86-80cf-af638054f0c4
6 files changed
tree: 404fe6ea3f5d40c207c3b68b8c5edd4e9bb1abe5
  1. lib/
  2. mac/
  3. test/
  4. win/
  5. COPYING
  6. DEPS
  7. rlz.gyp