Add a row in the network tray to inform users to turn Bluetooth on to enable Tether.

ash/system/bluetooth/tray_bluetooth.cc

Index: ash/system/bluetooth/tray_bluetooth.cc
diff --git a/ash/system/bluetooth/tray_bluetooth.cc b/ash/system/bluetooth/tray_bluetooth.cc
index 3a49c9898f79c2d7a324e71f259fb2771b947eef..0725c98f54fc37749c5ae5ff59795c9e11cc139e 100644
--- a/ash/system/bluetooth/tray_bluetooth.cc
+++ b/ash/system/bluetooth/tray_bluetooth.cc
@@ -314,8 +314,9 @@ class BluetoothDetailedView : public TrayDetailsView {
 
     // Show user Bluetooth state if there is no bluetooth devices in list.
     if (device_map_.size() == 0 && bluetooth_available && bluetooth_enabled) {
-      scroll_content()->AddChildView(
-          new InfoLabel(IDS_ASH_STATUS_TRAY_BLUETOOTH_DISCOVERING));
+      scroll_content()->AddChildView(new TrayDetailsView::InfoLabel(
+          IDS_ASH_STATUS_TRAY_BLUETOOTH_DISCOVERING,
+          nullptr /* InfoLabelDelegate */));

[Kyle Horimoto, 2017/07/10 18:37:07]

The comment should be the parameter name, not its type:

/* delegate */

[lesliewatkins, 2017/07/12 21:49:49]

Done.

     }
 
     // Focus the device which was focused before the device-list update.