Vendor things

third-party/vendor/web-sys/webidls/enabled/ResizeObserver.webidl

@@ -0,0 +1,32 @@
+enum ResizeObserverBoxOptions {
+    "border-box", "content-box", "device-pixel-content-box"
+};
+
+dictionary ResizeObserverOptions {
+    ResizeObserverBoxOptions box = "content-box";
+};
+
+[Exposed=(Window)]
+interface ResizeObserver {
+    constructor(ResizeObserverCallback callback);
+    undefined observe(Element target, optional ResizeObserverOptions options = {});
+    undefined unobserve(Element target);
+    undefined disconnect();
+};
+
+callback ResizeObserverCallback = undefined (sequence<ResizeObserverEntry> entries, ResizeObserver observer);
+
+[Exposed=Window]
+interface ResizeObserverEntry {
+    readonly attribute Element target;
+    readonly attribute DOMRectReadOnly contentRect;
+    readonly attribute FrozenArray<ResizeObserverSize> borderBoxSize;
+    readonly attribute FrozenArray<ResizeObserverSize> contentBoxSize;
+    readonly attribute FrozenArray<ResizeObserverSize> devicePixelContentBoxSize;
+};
+
+[Exposed=Window]
+interface ResizeObserverSize {
+    readonly attribute unrestricted double inlineSize;
+    readonly attribute unrestricted double blockSize;
+};