Roll swarm_client to 208922.

This includes the change to be able to parse isolated files for android.

BUG=249870

Review URL: https://chromiumcodereview.appspot.com/18076003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208978 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -43,7 +43,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarm_client
   # and whatever else without interference from each other.
-  "swarm_revision": "207274",
+  "swarm_revision": "208922",
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling openssl
   # and whatever else without interference from each other.