bluetooth: mac: add connected LE devices to chooser

device/bluetooth/bluetooth_adapter_mac.mm

Index: device/bluetooth/bluetooth_adapter_mac.mm
diff --git a/device/bluetooth/bluetooth_adapter_mac.mm b/device/bluetooth/bluetooth_adapter_mac.mm
index 1690da6559fe9582cecaba733cc476a6c4d7d763..0049e2e179b1f75a459c8bbf7f0f98c01aa4a7d2 100644
--- a/device/bluetooth/bluetooth_adapter_mac.mm
+++ b/device/bluetooth/bluetooth_adapter_mac.mm
@@ -514,40 +514,42 @@ void BluetoothAdapterMac::LowEnergyDeviceUpdated(
 
   DCHECK(device_mac);
 
-  // Get Advertised UUIDs
-  BluetoothDevice::UUIDList advertised_uuids;
-  NSArray* service_uuids =
-      [advertisement_data objectForKey:CBAdvertisementDataServiceUUIDsKey];
-  for (CBUUID* uuid in service_uuids) {
-    advertised_uuids.push_back(BluetoothUUID([[uuid UUIDString] UTF8String]));
-  }
-  NSArray* overflow_service_uuids = [advertisement_data
-      objectForKey:CBAdvertisementDataOverflowServiceUUIDsKey];
-  for (CBUUID* uuid in overflow_service_uuids) {
-    advertised_uuids.push_back(BluetoothUUID([[uuid UUIDString] UTF8String]));
-  }
+  if (advertisement_data) {
+    // Get Advertised UUIDs
+    BluetoothDevice::UUIDList advertised_uuids;
+    NSArray* service_uuids =
+        [advertisement_data objectForKey:CBAdvertisementDataServiceUUIDsKey];
+    for (CBUUID* uuid in service_uuids) {
+      advertised_uuids.push_back(BluetoothUUID([[uuid UUIDString] UTF8String]));
+    }
+    NSArray* overflow_service_uuids = [advertisement_data
+        objectForKey:CBAdvertisementDataOverflowServiceUUIDsKey];
+    for (CBUUID* uuid in overflow_service_uuids) {
+      advertised_uuids.push_back(BluetoothUUID([[uuid UUIDString] UTF8String]));
+    }
 
-  // Get Service Data.
-  BluetoothDevice::ServiceDataMap service_data_map;
-  NSDictionary* service_data =
-      [advertisement_data objectForKey:CBAdvertisementDataServiceDataKey];
-  for (CBUUID* uuid in service_data) {
-    NSData* data = [service_data objectForKey:uuid];
-    const uint8_t* bytes = static_cast<const uint8_t*>([data bytes]);
-    size_t length = [data length];
-    service_data_map.emplace(BluetoothUUID([[uuid UUIDString] UTF8String]),
-                             std::vector<uint8_t>(bytes, bytes + length));
-  }
+    // Get Service Data.
+    BluetoothDevice::ServiceDataMap service_data_map;
+    NSDictionary* service_data =
+        [advertisement_data objectForKey:CBAdvertisementDataServiceDataKey];
+    for (CBUUID* uuid in service_data) {
+      NSData* data = [service_data objectForKey:uuid];
+      const uint8_t* bytes = static_cast<const uint8_t*>([data bytes]);
+      size_t length = [data length];
+      service_data_map.emplace(BluetoothUUID([[uuid UUIDString] UTF8String]),
+                               std::vector<uint8_t>(bytes, bytes + length));
+    }
 
-  // Get Tx Power.
-  NSNumber* tx_power =
-      [advertisement_data objectForKey:CBAdvertisementDataTxPowerLevelKey];
-  int8_t clamped_tx_power = BluetoothDevice::ClampPower([tx_power intValue]);
+    // Get Tx Power.
+    NSNumber* tx_power =
+        [advertisement_data objectForKey:CBAdvertisementDataTxPowerLevelKey];
+    int8_t clamped_tx_power = BluetoothDevice::ClampPower([tx_power intValue]);
 
-  device_mac->UpdateAdvertisementData(
-      BluetoothDevice::ClampPower(rssi), std::move(advertised_uuids),
-      std::move(service_data_map),
-      tx_power == nil ? nullptr : &clamped_tx_power);
+    device_mac->UpdateAdvertisementData(
+        BluetoothDevice::ClampPower(rssi), std::move(advertised_uuids),
+        std::move(service_data_map),
+        tx_power == nil ? nullptr : &clamped_tx_power);
+  }
 
   if (is_new_device) {
     std::string device_address =