Auto merge of #13909 - dati91:promise-queue, r=jdm

Webbluetooth Async behaviour

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Note: depends on https://github.com/servo/servo/pull/13612

The current WBT communication is synchronous. With this, it should work properly (except the disconnect function, which will need some more work, because the current implementation differ from the spec).

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors

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- [X] There are tests for these changes

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components/servo/Cargo.lock

@@ -1571,6 +1571,7 @@ dependencies = [
 name = "net_traits"
 version = "0.0.1"
 dependencies = [
+ "bluetooth_traits 0.0.1",
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize_derive 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",

components/servo/lib.rs

@@ -64,7 +64,7 @@ fn webdriver(port: u16, constellation: Sender<ConstellationMsg>) {
 fn webdriver(_port: u16, _constellation: Sender<ConstellationMsg>) { }
 
 use bluetooth::BluetoothThreadFactory;
-use bluetooth_traits::BluetoothMethodMsg;
+use bluetooth_traits::BluetoothRequest;
 use compositing::{CompositorProxy, IOCompositor};
 use compositing::compositor_thread::InitialCompositorState;
 use compositing::windowing::WindowEvent;
@@ -247,7 +247,7 @@ fn create_constellation(opts: opts::Opts,
                         supports_clipboard: bool,
                         webrender_api_sender: webrender_traits::RenderApiSender)
                         -> (Sender<ConstellationMsg>, SWManagerSenders) {
-    let bluetooth_thread: IpcSender<BluetoothMethodMsg> = BluetoothThreadFactory::new();
+    let bluetooth_thread: IpcSender<BluetoothRequest> = BluetoothThreadFactory::new();
 
     let (public_resource_threads, private_resource_threads) =
         new_resource_threads(opts.user_agent,