shill: Use new user profile directory

New profile format will allow redirection to new storage
areas for user profiles.

BUG=chromium-os:34703
TEST=Run after installing new init scripts from dependent CL
CQ-DEPEND=I3c88ddb746bfc3f732bf00c03313971e41546ea9

Change-Id: I3435310c5c9a488fedbda3115d1068da3d36dc27
Reviewed-on: https://gerrit.chromium.org/gerrit/34002
Commit-Ready: Paul Stewart <pstew@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
diff --git a/shill_config.cc b/shill_config.cc
index 6543195..e1dbc13 100644
--- a/shill_config.cc
+++ b/shill_config.cc
@@ -14,7 +14,8 @@
 // static
 const char Config::kDefaultStorageDirectory[] = "/var/cache/shill";
 // static
-const char Config::kDefaultUserStorageFormat[] = "/home/%s/user/shill";
+const char Config::kDefaultUserStorageFormat[] =
+    "/var/run/shill/user_profiles/%s";
 // static
 const char Config::kFlimflamRunDirectory[] = "/var/run/flimflam";
 // static