bluetooth: Replace old advertised uuids

device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm

Index: device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm
diff --git a/device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm b/device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm
index 77dafb03c8d62ac8ccb545054ed18f306e1442e3..eeb1ace3beb1996e17dc2abb39103a7ffc787899 100644
--- a/device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm
+++ b/device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm
@@ -64,7 +64,15 @@ void BluetoothLowEnergyDiscoveryManagerMac::TryStartDiscovery() {
   };
 
   VLOG(1) << "TryStartDiscovery scanForPeripheralsWithServices";
-  [central_manager_ scanForPeripheralsWithServices:services options:nil];
+  // Start a scan with the Allow Duplicates option so that we get notified
+  // of each new Advertisement Packet. This allows us to provide up to date
+  // values for RSSI, Advertised Services, Advertised Data, etc.
+  [central_manager_
+      scanForPeripheralsWithServices:services
+                             options:@{
+                               CBCentralManagerScanOptionAllowDuplicatesKey :
+                                   @YES
+                             }];
   pending_ = false;
 }