Added PointerEvent firing on touch events.

Source/core/events/PointerEvent.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
+
 #include "core/events/PointerEvent.h"
 
+#include "core/events/EventDispatcher.h"
+
 namespace blink {
 
 PointerEvent::PointerEvent()
     : m_pointerId(0)
     , m_width(0)
     , m_height(0)
     , m_pressure(0)
     , m_tiltX(0)
     , m_tiltY(0)
     , m_isPrimary(false)
@@ skipping 21 matching lines @@
     if (initializer.hasTiltX())
         m_tiltX = initializer.tiltX();
     if (initializer.hasTiltY())
         m_tiltY = initializer.tiltY();
     if (initializer.hasPointerType())
         m_pointerType = initializer.pointerType();
     if (initializer.hasIsPrimary())
         m_isPrimary = initializer.isPrimary();
 }
 
+bool PointerEvent::isMouseEvent() const
+{
+    return false;
+}
+
 bool PointerEvent::isPointerEvent() const
 {
     return true;
 }
 
 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