Added PointerEvent firing on touch events.

Source/core/events/PointerEvent.h

Index: Source/core/events/PointerEvent.h
diff --git a/Source/core/events/PointerEvent.h b/Source/core/events/PointerEvent.h
index 2bb6b8f3dcbb78bae58baf7212e3529eecdcff32..3f8b8649999efb97f206de374261dc7769e9e712 100644
--- a/Source/core/events/PointerEvent.h
+++ b/Source/core/events/PointerEvent.h
@@ -51,6 +51,17 @@ private:
     bool m_isPrimary;
 };
 
+
+class PointerEventDispatchMediator final : public EventDispatchMediator {
+public:
+    static PassRefPtrWillBeRawPtr<PointerEventDispatchMediator> create(PassRefPtrWillBeRawPtr<PointerEvent>);
+
+private:
+    explicit PointerEventDispatchMediator(PassRefPtrWillBeRawPtr<PointerEvent>);
+    PointerEvent& event() const;
+    virtual bool dispatchEvent(EventDispatcher&) const override;
+};
+
 DEFINE_EVENT_TYPE_CASTS(PointerEvent);
 
 } // namespace blink