Vendor things

third-party/vendor/web-sys/webidls/unstable/weblock-apis.webidl

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+[SecureContext]
+interface mixin NavigatorLocks {
+  readonly attribute LockManager locks;
+};
+Navigator includes NavigatorLocks;
+WorkerNavigator includes NavigatorLocks;
+
+[SecureContext, Exposed=(Window,Worker)]
+interface LockManager {
+  Promise<any> request(DOMString name,
+                       LockGrantedCallback callback);
+  Promise<any> request(DOMString name,
+                       LockOptions options,
+                       LockGrantedCallback callback);
+
+  Promise<LockManagerSnapshot> query();
+};
+
+callback LockGrantedCallback = Promise<any> (Lock? lock);
+
+enum LockMode { "shared", "exclusive" };
+
+dictionary LockOptions {
+  LockMode mode = "exclusive";
+  boolean ifAvailable = false;
+  boolean steal = false;
+  AbortSignal signal;
+};
+
+dictionary LockManagerSnapshot {
+  sequence<LockInfo> held;
+  sequence<LockInfo> pending;
+};
+
+dictionary LockInfo {
+  DOMString name;
+  LockMode mode;
+  DOMString clientId;
+};
+
+[SecureContext, Exposed=(Window,Worker)]
+interface Lock {
+  readonly attribute DOMString name;
+  readonly attribute LockMode mode;
+};