Added PointerEvent.hasPointerCapture API.

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2748 matching lines @@
 void Element::releasePointerCapture(int pointerId, ExceptionState& exceptionState)
 {
     if (document().frame()) {
         if (!document().frame()->eventHandler().isPointerEventActive(pointerId))
             exceptionState.throwDOMException(InvalidPointerId, "InvalidPointerId");
         else
             document().frame()->eventHandler().releasePointerCapture(pointerId, this);
     }
 }
 
+bool Element::hasPointerCapture(int pointerId)
+{
+    return document().frame() && document().frame()->eventHandler().hasPointerCapture(pointerId, this);
+}
+
 String Element::innerText()
 {
     // We need to update layout, since plainText uses line boxes in the layout tree.
     document().updateStyleAndLayoutIgnorePendingStylesheetsForNode(this);
 
     if (!layoutObject())
         return textContent(true);
 
     return plainText(EphemeralRange::rangeOfContents(*this), TextIteratorForInnerText);
 }
@@ skipping 1031 matching lines @@
 
 DEFINE_TRACE_WRAPPERS(Element)
 {
     if (hasRareData()) {
         visitor->traceWrappers(elementRareData());
     }
     ContainerNode::traceWrappers(visitor);
 }
 
 } // namespace blink