Move UIEvent.pageX/pageY/layerX/layerY to MouseEvent

LayoutTests/fast/events/touch/script-tests/basic-multi-touch-events.js

 var div = document.createElement("div");
 div.id = "touchtarget";
 div.style.width = "100px";
 div.style.height = "100px";
 div.style.backgroundColor = "blue";
 
 var lastEvent = null;
 var touchEventsReceived = 0;
 var EXPECTED_TOUCH_EVENTS_TOTAL = 4;
 
@@ skipping 18 matching lines @@
 div.addEventListener("touchmove", touchEventCallback, false);
 div.addEventListener("touchend", touchEventCallback, false);
 document.body.insertBefore(div, document.body.firstChild);
 
 function verifyTouchEvent(type, totalTouchCount, changedTouchCount, targetTouchCount)
 {
     shouldBeEqualToString("lastEvent.type", type);
     shouldBe("lastEvent.touches.length", totalTouchCount.toString());
     shouldBe("lastEvent.changedTouches.length", changedTouchCount.toString());
     shouldBe("lastEvent.targetTouches.length", targetTouchCount.toString());
-    shouldBe("lastEvent.pageX", "0");
-    shouldBe("lastEvent.pageY", "0");
 }
 
 function verifyTouchPoint(list, point, x, y, id)
 {
     shouldBe("lastEvent." + list + "[" + point + "].pageX", x.toString());
     shouldBe("lastEvent." + list + "[" + point + "].pageY", y.toString());
     shouldBe("lastEvent." + list + "[" + point + "].clientX", x.toString());
     shouldBe("lastEvent." + list + "[" + point + "].clientY", y.toString());
     shouldBe("lastEvent." + list + "[" + point + "].identifier", id.toString());
 }
@@ skipping 54 matching lines @@
 
 if (window.eventSender) {
     description("This tests basic multi touch event support.");
 
     lastEvent = null;
     eventSender.clearTouchPoints();
     multiTouchSequence();
 } else {
     debug("This test requires DumpRenderTree.  Tap on the blue rect to log.")
 }