Added counters for pointer boundary events fired.

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

Index: third_party/WebKit/Source/core/dom/Element.h
diff --git a/third_party/WebKit/Source/core/dom/Element.h b/third_party/WebKit/Source/core/dom/Element.h
index ba817d44c0dc7afd96da502f0259b986f09530e4..65eda42dcc85219cfa084360b3d7b5f6d3ed989b 100644
--- a/third_party/WebKit/Source/core/dom/Element.h
+++ b/third_party/WebKit/Source/core/dom/Element.h
@@ -453,7 +453,17 @@ public:
 
     void setPointerCapture(int pointerId, ExceptionState&);
     void releasePointerCapture(int pointerId, ExceptionState&);
-    bool hasPointerCapture(int pointerId);
+
+    // Returns true iff the element would capture the next pointer event, as
+    // defined in the spec:
+    // https://w3c.github.io/pointerevents/#dom-element-haspointercapture
+    bool hasPointerCapture(int pointerId) const;
+
+    // Returns true iff the element received a pointer event for the |pointerId|
+    // after reuqesting to capture it. In spec terms, the pending pointer
+    // capture has been processed for this |pointerId|:
+    // https://w3c.github.io/pointerevents/#process-pending-pointer-capture
+    bool hasProcessedPointerCapture(int pointerId) const;
 
     String textFromChildren();