WIP Add getCoalescedEvents API using vector of WebInputEvents

third_party/WebKit/Source/core/events/PointerEvent.h

Index: third_party/WebKit/Source/core/events/PointerEvent.h
diff --git a/third_party/WebKit/Source/core/events/PointerEvent.h b/third_party/WebKit/Source/core/events/PointerEvent.h
index a03c3fb8c61caf668933455f15cbc11b3494c60f..26faf54384eebe9a2d62e2aa65ce6008278bef12 100644
--- a/third_party/WebKit/Source/core/events/PointerEvent.h
+++ b/third_party/WebKit/Source/core/events/PointerEvent.h
@@ -35,10 +35,13 @@ class PointerEvent final : public MouseEvent {
 
   EventDispatchMediator* createMediator() override;
 
+  HeapVector<Member<PointerEvent>> getCoalescedEvents() const;
+
   DECLARE_VIRTUAL_TRACE();
 
  private:
   PointerEvent(const AtomicString&, const PointerEventInit&);
+  PointerEvent(const AtomicString&, const PointerEventInit&, bool);
 
   int m_pointerId;
   double m_width;
@@ -48,6 +51,8 @@ class PointerEvent final : public MouseEvent {
   long m_tiltY;
   String m_pointerType;
   bool m_isPrimary;
+
+  HeapVector<Member<PointerEvent>> m_coalescedEvents;
 };
 
 class PointerEventDispatchMediator final : public EventDispatchMediator {