Add signal strength indicator icon to WebBluetooth chooser on non-Mac desktops

content/browser/bluetooth/bluetooth_device_chooser_controller.cc

Index: content/browser/bluetooth/bluetooth_device_chooser_controller.cc
diff --git a/content/browser/bluetooth/bluetooth_device_chooser_controller.cc b/content/browser/bluetooth/bluetooth_device_chooser_controller.cc
index dc4842b2dad2da78247315e3658014f4e3e3da7f..7d9d78b2610f5524fb70735a941190998457e993 100644
--- a/content/browser/bluetooth/bluetooth_device_chooser_controller.cc
+++ b/content/browser/bluetooth/bluetooth_device_chooser_controller.cc
@@ -340,13 +340,13 @@ void BluetoothDeviceChooserController::GetDevice(
 void BluetoothDeviceChooserController::AddFilteredDevice(
     const device::BluetoothDevice& device) {
   if (chooser_.get() && MatchesFilters(device, options_->filters)) {
+    base::Optional<int8_t> rssi = device.GetInquiryRSSI();
     chooser_->AddOrUpdateDevice(
         device.GetAddress(), !!device.GetName() /* should_update_name */,
         device.GetNameForDisplay(),
         // TODO(http://crbug.com/543466): Show connection and paired status.
         false /* is_gatt_connected */, false /* is_paired */,
-        // TODO(http://crbug.com/629689): Add signal strength indicator.
-        nullptr /* rssi */);
+        rssi ? &(rssi.value()) : nullptr);

[Jeffrey Yasskin, 2016/08/19 17:46:54]

You don't need the parentheses around (rssi.value()), although I don't hate them
either.

[juncai, 2016/08/19 22:59:17]

Done.

   }
 }