Plumb WebTouchEvent::causesScrollingIfUncanceled to TouchEvent and

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index 274095416c82a8530a20c0a6a5b2a1d5d1378a6f..353691482bdede71d9142445f2697a50f99cccc7 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -3788,7 +3788,7 @@ bool EventHandler::handleTouchEvent(const PlatformTouchEvent& event)
             RefPtrWillBeRawPtr<TouchEvent> touchEvent = TouchEvent::create(
                 touches.get(), touchesByTarget.get(touchEventTarget), changedTouches[state].m_touches.get(),
                 stateName, touchEventTarget->toNode()->document().domWindow(),
-                event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.cancelable(), event.timestamp());
+                event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.cancelable(), event.causesScrollingIfUncanceled(), event.timestamp());
             touchEventTarget->toNode()->dispatchTouchEvent(touchEvent.get());
             swallowedEvent = swallowedEvent || touchEvent->defaultPrevented() || touchEvent->defaultHandled();
         }