Updated to Chrome 45 (2454) moved from SVN to git.

core/events/WheelEvent.idl

Index: core/events/WheelEvent.idl
diff --git a/core/events/WheelEvent.idl b/core/events/WheelEvent.idl
index 91fcf88359db23f56fce26661e8302cb7562fe9a..cf556e4c1f0b75e7c55b462139a066207c54d9bf 100644
--- a/core/events/WheelEvent.idl
+++ b/core/events/WheelEvent.idl
@@ -19,22 +19,22 @@
  * Boston, MA 02110-1301, USA.
  */
 
-// Introduced in DOM Level 3:
+// https://w3c.github.io/uievents/#interface-WheelEvent
+
 [
-    EventConstructor,
+    Constructor(DOMString type, optional WheelEventInit eventInitDict),
 ] interface WheelEvent : MouseEvent {
     // DeltaModeCode
-    const unsigned long              DOM_DELTA_PIXEL = 0x00;
-    const unsigned long              DOM_DELTA_LINE  = 0x01;
-    const unsigned long              DOM_DELTA_PAGE  = 0x02;
-
-    [InitializedByEventConstructor] readonly attribute double deltaX;
-    [InitializedByEventConstructor] readonly attribute double deltaY;
-    [InitializedByEventConstructor] readonly attribute double deltaZ;
-    [InitializedByEventConstructor] readonly attribute unsigned long deltaMode;
+    const unsigned long DOM_DELTA_PIXEL = 0x00;
+    const unsigned long DOM_DELTA_LINE = 0x01;
+    const unsigned long DOM_DELTA_PAGE = 0x02;
+    readonly attribute double deltaX;
+    readonly attribute double deltaY;
+    readonly attribute double deltaZ;
+    readonly attribute unsigned long deltaMode;
 
-    // Non-standard API.
-    [InitializedByEventConstructor, MeasureAs=WheelEventWheelDeltaX] readonly attribute long wheelDeltaX;
-    [InitializedByEventConstructor, MeasureAs=WheelEventWheelDeltaY] readonly attribute long wheelDeltaY;
+    // Non-standard APIs
+    [MeasureAs=WheelEventWheelDeltaX] readonly attribute long wheelDeltaX;
+    [MeasureAs=WheelEventWheelDeltaY] readonly attribute long wheelDeltaY;
     [MeasureAs=WheelEventWheelDelta] readonly attribute long wheelDelta;
 };