Treat tethered networks as mobile networks

chrome/browser/ui/webui/help/version_updater_chromeos.cc

Index: chrome/browser/ui/webui/help/version_updater_chromeos.cc
diff --git a/chrome/browser/ui/webui/help/version_updater_chromeos.cc b/chrome/browser/ui/webui/help/version_updater_chromeos.cc
index e5885cee2ddc2834bdb786ddea0d100950d86e71..bd0e55f36b6e882d0239f20f06cbc004b34fd70b 100644
--- a/chrome/browser/ui/webui/help/version_updater_chromeos.cc
+++ b/chrome/browser/ui/webui/help/version_updater_chromeos.cc
@@ -55,7 +55,9 @@ NetworkStatus GetNetworkStatus(bool interactive,
   if (network->type() == shill::kTypeBluetooth)
     return NETWORK_STATUS_DISALLOWED;
 
-  if (network->type() == shill::kTypeCellular &&
+  // Treats tethered networks as cellular networks.
+  if ((network->type() == shill::kTypeCellular ||
+       network->tethering_state() == shill::kTetheringConfirmedState) &&
       !help_utils_chromeos::IsUpdateOverCellularAllowed(interactive)) {
     return NETWORK_STATUS_DISALLOWED;
   }
@@ -99,10 +101,12 @@ bool EnsureCanUpdate(bool interactive,
                  l10n_util::GetStringUTF16(IDS_UPGRADE_OFFLINE));
     return false;
   } else if (status == NETWORK_STATUS_DISALLOWED) {
-    base::string16 message =
-        l10n_util::GetStringFUTF16(
-            IDS_UPGRADE_DISALLOWED,
-            help_utils_chromeos::GetConnectionTypeAsUTF16(network->type()));
+    base::string16 message = l10n_util::GetStringFUTF16(
+        IDS_UPGRADE_DISALLOWED,
+        help_utils_chromeos::GetConnectionTypeAsUTF16(
+            network->tethering_state() == shill::kTetheringConfirmedState
+                ? shill::kTypeCellular
+                : network->type()));
     callback.Run(VersionUpdater::FAILED_CONNECTION_TYPE_DISALLOWED, 0,
                  std::string(), 0, message);
     return false;