Add chromeos_network_deprecated.h

Change-Id: Ib2d733e6044a4581e48b1542c2d288559bb38f30

BUG=Build broke due to http://codereview.chromium.org/6606024/
TEST=Ensure builds.

Review URL: http://codereview.chromium.org/6609045
diff --git a/flimflam.cc b/flimflam.cc
index ae37fd0..2cf23c8 100644
--- a/flimflam.cc
+++ b/flimflam.cc
@@ -12,6 +12,7 @@
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "cros/chromeos_network.h"
+#include "cros/chromeos_network_deprecated.h"
 #include "entd/entd.h"
 #include "entd/utils.h"