Separate the DOM and layout into separate crates.

src/components/script/dom/bindings/codegen/Event.webidl

@@ -0,0 +1,80 @@
+[Constructor(DOMString type, optional EventInit eventInitDict)]
+interface Event {
+  readonly attribute DOMString type;
+  readonly attribute EventTarget? target;
+  readonly attribute EventTarget? currentTarget;
+
+  const unsigned short NONE = 0;
+  const unsigned short CAPTURING_PHASE = 1;
+  const unsigned short AT_TARGET = 2;
+  const unsigned short BUBBLING_PHASE = 3;
+  readonly attribute unsigned short eventPhase;
+
+  void stopPropagation();
+  void stopImmediatePropagation();
+
+  readonly attribute boolean bubbles;
+  readonly attribute boolean cancelable;
+  void preventDefault();
+  readonly attribute boolean defaultPrevented;
+
+  readonly attribute boolean isTrusted;
+  readonly attribute DOMTimeStamp timeStamp;
+
+  [Throws]
+  void initEvent(DOMString type, boolean bubbles, boolean cancelable);
+};
+
+/*// Mozilla specific legacy stuff.
+partial interface Event {
+  const long MOUSEDOWN    = 0x00000001;
+  const long MOUSEUP      = 0x00000002;
+  const long MOUSEOVER    = 0x00000004;
+  const long MOUSEOUT     = 0x00000008;
+  const long MOUSEMOVE    = 0x00000010;
+  const long MOUSEDRAG    = 0x00000020;
+  const long CLICK        = 0x00000040;
+  const long DBLCLICK     = 0x00000080;
+  const long KEYDOWN      = 0x00000100;
+  const long KEYUP        = 0x00000200;
+  const long KEYPRESS     = 0x00000400;
+  const long DRAGDROP     = 0x00000800;
+  const long FOCUS        = 0x00001000;
+  const long BLUR         = 0x00002000;
+  const long SELECT       = 0x00004000;
+  const long CHANGE       = 0x00008000;
+  const long RESET        = 0x00010000;
+  const long SUBMIT       = 0x00020000;
+  const long SCROLL       = 0x00040000;
+  const long LOAD         = 0x00080000;
+  const long UNLOAD       = 0x00100000;
+  const long XFER_DONE    = 0x00200000;
+  const long ABORT        = 0x00400000;
+  const long ERROR        = 0x00800000;
+  const long LOCATE       = 0x01000000;
+  const long MOVE         = 0x02000000;
+  const long RESIZE       = 0x04000000;
+  const long FORWARD      = 0x08000000;
+  const long HELP         = 0x10000000;
+  const long BACK         = 0x20000000;
+  const long TEXT         = 0x40000000;
+
+  const long ALT_MASK     = 0x00000001;
+  const long CONTROL_MASK = 0x00000002;
+  const long SHIFT_MASK   = 0x00000004;
+  const long META_MASK    = 0x00000008;
+
+  readonly attribute EventTarget? originalTarget;
+  readonly attribute EventTarget? explicitOriginalTarget;
+  [ChromeOnly] readonly attribute boolean multipleActionsPrevented;
+
+  void preventBubble();
+  void preventCapture();
+  boolean getPreventDefault();
+  };*/
+
+dictionary EventInit {
+  boolean bubbles = false;
+  boolean cancelable = false;
+};
+