Reverting my revert...

Revert 102259 - Revert 102215 - Pull libcros v173

Lots of functions have been deprecated recently.
We should update the DEPS and wait for a while before
removing them.

BUG=chromium-os:20648
TEST=build chrome

Review URL: http://codereview.chromium.org/7980030

TBR=satorux@chromium.org
Review URL: http://codereview.chromium.org/7977046

TBR=tommi@chromium.org
Review URL: http://codereview.chromium.org/7983060

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102261 0039d316-1c4b-4281-b951-d872f2087c98

tools/cros.DEPS/DEPS

@@ -5,7 +5,7 @@ vars = {
 deps_os = {
   "unix" : {
     "src/third_party/cros":
-      Var("chromiumos_git") + "/platform/cros.git@3daf7b80",
+      Var("chromiumos_git") + "/platform/cros.git@69a693ab",
     "src/third_party/cros_system_api":
       Var("chromiumos_git") + "/platform/system_api.git@c3de536a",
   }