WIP Add getCoalescedEvents API using vector of WebInputEvents

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

Index: third_party/WebKit/Source/core/events/PointerEvent.cpp
diff --git a/third_party/WebKit/Source/core/events/PointerEvent.cpp b/third_party/WebKit/Source/core/events/PointerEvent.cpp
index 4d63b1e14d0e8cf43088b6d10b846c4241a96d63..66f8b63497c42d9d1518aeaeb06303be2852d0dd 100644
--- a/third_party/WebKit/Source/core/events/PointerEvent.cpp
+++ b/third_party/WebKit/Source/core/events/PointerEvent.cpp
@@ -11,6 +11,18 @@ namespace blink {
 
 PointerEvent::PointerEvent(const AtomicString& type,
                            const PointerEventInit& initializer)
+    : PointerEvent(type, initializer, true) {
+  if (initializer.hasCoalescedEventInits()) {
+    for (auto coalescedEventInit : initializer.coalescedEventInits()) {
+      m_coalescedEvents.append(
+          new PointerEvent(type, coalescedEventInit, true));
+    }
+  }
+}
+
+PointerEvent::PointerEvent(const AtomicString& type,
+                           const PointerEventInit& initializer,
+                           bool)
     : MouseEvent(type, initializer),
       m_pointerId(0),
       m_width(0),
@@ -49,7 +61,12 @@ EventDispatchMediator* PointerEvent::createMediator() {
   return PointerEventDispatchMediator::create(this);
 }
 
+HeapVector<Member<PointerEvent>> PointerEvent::getCoalescedEvents() const {
+  return m_coalescedEvents;
+}
+
 DEFINE_TRACE(PointerEvent) {
+  visitor->trace(m_coalescedEvents);
   MouseEvent::trace(visitor);
 }