Use new wrapper types for web_bluetooth.mojom

content/common/bluetooth/web_bluetooth_device_id.cc

Index: content/common/bluetooth/web_bluetooth_device_id.cc
diff --git a/content/common/bluetooth/web_bluetooth_device_id.cc b/content/common/bluetooth/web_bluetooth_device_id.cc
index 823ed0fd979cd6736a587d525848457153e084b2..7a34287a1fffd1dd20adc2d7287f10860a212004 100644
--- a/content/common/bluetooth/web_bluetooth_device_id.cc
+++ b/content/common/bluetooth/web_bluetooth_device_id.cc
@@ -79,9 +79,4 @@ bool WebBluetoothDeviceId::operator!=(
   return !(*this == device_id);
 }
 
-std::ostream& operator<<(std::ostream& out,
-                         const WebBluetoothDeviceId& device_id) {
-  return out << device_id.str();
-}
-
 }  // namespace content