bluetooth: Use WebBluetoothDeviceId instead of string

content/renderer/bluetooth/web_bluetooth_impl.h

Index: content/renderer/bluetooth/web_bluetooth_impl.h
diff --git a/content/renderer/bluetooth/web_bluetooth_impl.h b/content/renderer/bluetooth/web_bluetooth_impl.h
index 086266f74aa9954a73f7ce46e2a4f30532cc5caf..a03ccdbef713e47aada396d2f243c1385a7c0cd1 100644
--- a/content/renderer/bluetooth/web_bluetooth_impl.h
+++ b/content/renderer/bluetooth/web_bluetooth_impl.h
@@ -86,7 +86,7 @@ class CONTENT_EXPORT WebBluetoothImpl
   void RemoteCharacteristicValueChanged(
       const mojo::String& characteristic_instance_id,
       mojo::Array<uint8_t> value) override;
-  void GattServerDisconnected(const mojo::String& device_id) override;
+  void GattServerDisconnected(const WebBluetoothDeviceId& device_id) override;
 
   // Callbacks for WebBluetoothService calls:
   void OnRequestDeviceComplete(
@@ -140,7 +140,9 @@ class CONTENT_EXPORT WebBluetoothImpl
   // Map of device_ids to WebBluetoothDevices. Added in connect() and removed in
   // disconnect(). This means a device may not actually be connected while in
   // this map, but that it will definitely be removed when the page navigates.
-  std::unordered_map<std::string, blink::WebBluetoothDevice*>
+  std::unordered_map<WebBluetoothDeviceId,
+                     blink::WebBluetoothDevice*,
+                     WebBluetoothDeviceIdHash>
       connected_devices_;
 
   // Binding associated with |web_bluetooth_service_|.