Added PointerEvent firing on touch events.

Source/core/events/PointerEvent.cpp

Index: Source/core/events/PointerEvent.cpp
diff --git a/Source/core/events/PointerEvent.cpp b/Source/core/events/PointerEvent.cpp
index 3cfe5e0c6645a3ab36520117c1dcba83b753d19e..ae67e16d76e290037b36a783314cb32f32abd5c0 100644
--- a/Source/core/events/PointerEvent.cpp
+++ b/Source/core/events/PointerEvent.cpp
@@ -3,8 +3,11 @@
 // found in the LICENSE file.
 
 #include "config.h"
+
 #include "core/events/PointerEvent.h"
 
+#include "core/events/EventDispatcher.h"
+
 namespace blink {
 
 PointerEvent::PointerEvent()
@@ -46,6 +49,11 @@ PointerEvent::PointerEvent(const AtomicString& type, const PointerEventInit& ini
         m_isPrimary = initializer.isPrimary();
 }
 
+bool PointerEvent::isMouseEvent() const
+{
+    return false;
+}
+
 bool PointerEvent::isPointerEvent() const
 {
     return true;
@@ -56,4 +64,24 @@ DEFINE_TRACE(PointerEvent)
     MouseEvent::trace(visitor);
 }
 
+PassRefPtrWillBeRawPtr<PointerEventDispatchMediator> PointerEventDispatchMediator::create(PassRefPtrWillBeRawPtr<PointerEvent> pointerEvent)
+{
+    return adoptRefWillBeNoop(new PointerEventDispatchMediator(pointerEvent));
+}
+
+PointerEventDispatchMediator::PointerEventDispatchMediator(PassRefPtrWillBeRawPtr<PointerEvent> pointerEvent)
+    : EventDispatchMediator(pointerEvent)
+{
+}
+
+PointerEvent& PointerEventDispatchMediator::event() const
+{
+    return toPointerEvent(EventDispatchMediator::event());
+}
+
+bool PointerEventDispatchMediator::dispatchEvent(EventDispatcher& dispatcher) const
+{
+    return dispatcher.dispatch();

[Rick Byers, 2015/05/27 23:58:07]

I think you need at least the logic from
MouseEventDispatchMediator::dispatchEvent which adjusts the relatedTarget. 
Hopefully there's a test you can add that covers that behavior (maybe try
breaking it for mouse and see what test fails, then make a similar test for
pointer events).

[mustaq, 2015/06/09 15:31:27]

Done.

+}
+
 } // namespace blink