Add a few owners for net/tools/testserver.

For device_management.py only

BUG=none
TEST=none


Review URL: http://codereview.chromium.org/9839002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@128256 0039d316-1c4b-4281-b951-d872f2087c98

net/tools/testserver/OWNERS

@@ -5,3 +5,8 @@ phajdan.jr@chromium.org
 # run_testserver.cc.
 akalin@chromium.org
 nick@chromium.org
+
+# For changes to device_management.py.
+joaodasilva@chromium.org
+mnissler@chromium.org
+pastarmovj@chromium.org