Sync GlobalEventHandlers and WindowEventHandlers with the spec

Source/core/dom/GlobalEventHandlers.idl

Index: Source/core/dom/GlobalEventHandlers.idl
diff --git a/Source/core/dom/GlobalEventHandlers.idl b/Source/core/dom/GlobalEventHandlers.idl
index 6a7f1c1860e79d26894cd6e35902546ab1dc5149..07130b531c0eaecc3586401daba160652269bcd1 100644
--- a/Source/core/dom/GlobalEventHandlers.idl
+++ b/Source/core/dom/GlobalEventHandlers.idl
@@ -27,7 +27,7 @@
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// http://www.whatwg.org/specs/web-apps/current-work/#globaleventhandlers
+// https://html.spec.whatwg.org/#globaleventhandlers
 
 [
     LegacyTreatAsPartialInterface,
@@ -57,6 +57,7 @@
     attribute EventHandler ondurationchange;
     attribute EventHandler onemptied;
     attribute EventHandler onended;
+    // FIXME: onerror should be an OnErrorEventHandler.
     attribute EventHandler onerror;
     attribute EventHandler onfocus;
     attribute EventHandler oninput;
@@ -69,6 +70,7 @@
     attribute EventHandler onloadedmetadata;
     attribute EventHandler onloadstart;
     attribute EventHandler onmousedown;
+    // FIXME: onmouseevent and onmouseleave should have [LenientThis].
     attribute EventHandler onmouseenter;
     attribute EventHandler onmouseleave;
     attribute EventHandler onmousemove;