Plumb WebTouchEvent::causesScrollingIfUncanceled to TouchEvent and

Source/core/events/TouchEvent.h

Index: Source/core/events/TouchEvent.h
diff --git a/Source/core/events/TouchEvent.h b/Source/core/events/TouchEvent.h
index 021a6754bb73b84cc5a501b7f000343185d8eead..7ae4ba5fe247fd0ebcb5fcaa9285bfbe0e83b8bc 100644
--- a/Source/core/events/TouchEvent.h
+++ b/Source/core/events/TouchEvent.h
@@ -45,11 +45,11 @@ public:
     static PassRefPtrWillBeRawPtr<TouchEvent> create(TouchList* touches,
         TouchList* targetTouches, TouchList* changedTouches,
         const AtomicString& type, PassRefPtrWillBeRawPtr<AbstractView> view,
-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable,
+        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable, bool causesScrollingIfUncanceled,
         double uiCreateTime = 0)
     {
         return adoptRefWillBeNoop(new TouchEvent(touches, targetTouches, changedTouches, type, view,
-            ctrlKey, altKey, shiftKey, metaKey, cancelable, uiCreateTime));
+            ctrlKey, altKey, shiftKey, metaKey, cancelable, causesScrollingIfUncanceled, uiCreateTime));
     }
 
     void initTouchEvent(TouchList* touches, TouchList* targetTouches,
@@ -66,6 +66,8 @@ public:
     void setTargetTouches(PassRefPtrWillBeRawPtr<TouchList> targetTouches) { m_targetTouches = targetTouches; }
     void setChangedTouches(PassRefPtrWillBeRawPtr<TouchList> changedTouches) { m_changedTouches = changedTouches; }
 
+    bool causesScrollingIfUncanceled() const { return m_causesScrollingIfUncanceled; }
+
     virtual bool isTouchEvent() const override;
 
     virtual const AtomicString& interfaceName() const override;
@@ -79,12 +81,13 @@ private:
     TouchEvent(TouchList* touches, TouchList* targetTouches,
             TouchList* changedTouches, const AtomicString& type,
             PassRefPtrWillBeRawPtr<AbstractView>,
-            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable,
+            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable, bool causesScrollingIfUncanceled,
             double uiCreateTime = 0);
 
     RefPtrWillBeMember<TouchList> m_touches;
     RefPtrWillBeMember<TouchList> m_targetTouches;
     RefPtrWillBeMember<TouchList> m_changedTouches;
+    bool m_causesScrollingIfUncanceled;
 };
 
 class TouchEventDispatchMediator final : public EventDispatchMediator {