bluetooth: Refactor how we update based on Advertising Data

device/bluetooth/bluetooth_low_energy_device_mac.h

Index: device/bluetooth/bluetooth_low_energy_device_mac.h
diff --git a/device/bluetooth/bluetooth_low_energy_device_mac.h b/device/bluetooth/bluetooth_low_energy_device_mac.h
index 3101f13d8ac8f15baf9bd74fcf3bd3cb8cc58a3e..ca5ff5f6828b9c048cd97cfeed499de4a78fe941 100644
--- a/device/bluetooth/bluetooth_low_energy_device_mac.h
+++ b/device/bluetooth/bluetooth_low_energy_device_mac.h
@@ -34,13 +34,9 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyDeviceMac
     : public BluetoothDeviceMac {
  public:
   BluetoothLowEnergyDeviceMac(BluetoothAdapterMac* adapter,
-                              CBPeripheral* peripheral,
-                              NSDictionary* advertisement_data,
-                              int rssi);
+                              CBPeripheral* peripheral);
   ~BluetoothLowEnergyDeviceMac() override;
 
-  int GetRSSI() const;
-
   // BluetoothDevice overrides.
   std::string GetIdentifier() const override;
   uint32_t GetBluetoothClass() const override;
@@ -97,9 +93,6 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyDeviceMac
   void DidUpdateNotificationState(CBCharacteristic* characteristic,
                                   NSError* error);
 
-  // Updates information about the device.
-  virtual void Update(NSDictionary* advertisement_data, int rssi);
-
   static std::string GetPeripheralIdentifier(CBPeripheral* peripheral);
 
   // Hashes and truncates the peripheral identifier to deterministically
@@ -136,9 +129,6 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyDeviceMac
   base::scoped_nsobject<BluetoothLowEnergyPeripheralDelegate>
       peripheral_delegate_;
 
-  // RSSI value.
-  int rssi_;
-
   // Whether the device is connectable.
   bool connectable_;