[cros] Hide chrome://mobilesetup content on non-supported networks.

chrome/browser/chromeos/cros/network_library.h

Index: chrome/browser/chromeos/cros/network_library.h
diff --git a/chrome/browser/chromeos/cros/network_library.h b/chrome/browser/chromeos/cros/network_library.h
index 5436bf06272ef1c02171e10bdc9d5d861916ce06..eddc47ed64a9b3f24b7cd07b9c1a022ee4af1701 100644
--- a/chrome/browser/chromeos/cros/network_library.h
+++ b/chrome/browser/chromeos/cros/network_library.h
@@ -629,6 +629,12 @@ class CellularNetwork : public WirelessNetwork {
   const Apn& apn() const { return apn_; }
   const Apn& last_good_apn() const { return last_good_apn_; }
   void SetApn(const Apn& apn);
+
+  // Returns true if network supports activation.
+  // Current implementation returns same as SupportsDataPlan().
+  bool SupportsActivation() const;
+
+  // Returns true if one of the usage_url_ / payment_url_ (or both) is defined.
   bool SupportsDataPlan() const;
 
   // Misc.