Auto merge of #15367 - szeged:bluetooth-webidl, r=nox

Update WebBluetooth webidl files

<!-- Please describe your changes on the following line: -->
Update the WebBluetooth related webidl files with the `[SameObject]` extended attribute, and unify the indentation in these files.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors

<!-- Either: -->
- [x] There are tests for these changes

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/15367)
<!-- Reviewable:end -->

components/script/dom/webidls/Bluetooth.webidl

@@ -30,19 +30,15 @@ dictionary RequestDeviceOptions {
 [Pref="dom.bluetooth.enabled"]
 interface Bluetooth : EventTarget {
   // [SecureContext]
-//  readonly attribute BluetoothDevice? referringDevice;
-  attribute EventHandler onavailabilitychanged;
-//  [SecureContext]
   // Promise<boolean> getAvailability();
-//  [SecureContext]
-//  attribute EventHandler onavailabilitychanged;
-//  [SecureContext]
+  [SecureContext]
+  attribute EventHandler onavailabilitychanged;
+  // [SecureContext, SameObject]
   // readonly attribute BluetoothDevice? referringDevice;
   [SecureContext]
   Promise<BluetoothDevice> requestDevice(optional RequestDeviceOptions options);
 };
 
-// Bluetooth implements EventTarget;
 // Bluetooth implements BluetoothDeviceEventHandlers;
 // Bluetooth implements CharacteristicEventHandlers;
 // Bluetooth implements ServiceEventHandlers;

components/script/dom/webidls/BluetoothAdvertisingEvent.webidl

@@ -12,13 +12,16 @@ interface BluetoothServiceDataMap {
 };*/
 [Pref="dom.bluetooth.enabled", Constructor(DOMString type, BluetoothAdvertisingEventInit init)]
 interface BluetoothAdvertisingEvent : Event {
+  [SameObject]
   readonly attribute BluetoothDevice device;
   // readonly attribute FrozenArray<UUID> uuids;
   readonly attribute DOMString? name;
   readonly attribute unsigned short? appearance;
   readonly attribute byte? txPower;
   readonly attribute byte? rssi;
+  // [SameObject]
   // readonly attribute BluetoothManufacturerDataMap manufacturerData;
+  // [SameObject]
   // readonly attribute BluetoothServiceDataMap serviceData;
 };
 dictionary BluetoothAdvertisingEventInit : EventInit {

components/script/dom/webidls/BluetoothRemoteGATTCharacteristic.webidl

@@ -6,6 +6,7 @@
 
 [Pref="dom.bluetooth.enabled"]
 interface BluetoothRemoteGATTCharacteristic : EventTarget {
+  [SameObject]
   readonly attribute BluetoothRemoteGATTService service;
   readonly attribute DOMString uuid;
   readonly attribute BluetoothCharacteristicProperties properties;

components/script/dom/webidls/BluetoothRemoteGATTDescriptor.webidl

@@ -6,6 +6,7 @@
 
 [Pref="dom.bluetooth.enabled"]
 interface BluetoothRemoteGATTDescriptor {
+  [SameObject]
   readonly attribute BluetoothRemoteGATTCharacteristic characteristic;
   readonly attribute DOMString uuid;
   readonly attribute ByteString? value;

components/script/dom/webidls/BluetoothRemoteGATTServer.webidl

@@ -6,6 +6,7 @@
 
 [Pref="dom.bluetooth.enabled"]
 interface BluetoothRemoteGATTServer {
+  [SameObject]
   readonly attribute BluetoothDevice device;
   readonly attribute boolean connected;
   Promise<BluetoothRemoteGATTServer> connect();

components/script/dom/webidls/BluetoothRemoteGATTService.webidl

@@ -6,6 +6,7 @@
 
 [Pref="dom.bluetooth.enabled"]
 interface BluetoothRemoteGATTService : EventTarget {
+  [SameObject]
   readonly attribute BluetoothDevice device;
   readonly attribute DOMString uuid;
   readonly attribute boolean isPrimary;

components/script/dom/webidls/Navigator.webidl

@@ -28,7 +28,7 @@ interface NavigatorID {
 
 // https://webbluetoothcg.github.io/web-bluetooth/#navigator-extensions
 partial interface Navigator {
-  readonly attribute Bluetooth bluetooth;
+  [SameObject, Pref="dom.bluetooth.enabled"] readonly attribute Bluetooth bluetooth;
 };
 
 // https://w3c.github.io/ServiceWorker/#navigator-service-worker