Filter out stationary touches from coalesced list

third_party/WebKit/Source/core/input/PointerEventManager.cpp

 // Copyright 2016 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 "core/input/PointerEventManager.h"
 
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/shadow/FlatTreeTraversal.h"
 #include "core/events/MouseEvent.h"
@@ skipping 21 matching lines @@
 bool isInDocument(EventTarget* n) {
   return n && n->toNode() && n->toNode()->isConnected();
 }
 
 Vector<WebTouchPoint> getCoalescedPoints(
     const Vector<WebTouchEvent>& coalescedEvents,
     int id) {
   Vector<WebTouchPoint> relatedPoints;
   for (const auto& touchEvent : coalescedEvents) {
     for (unsigned i = 0; i < touchEvent.touchesLength; ++i) {
-      // TODO(nzolghadr): Need to filter out stationary points
-      if (touchEvent.touches[i].id == id)
+      if (touchEvent.touches[i].id == id &&
+          touchEvent.touches[i].state != WebTouchPoint::StateStationary)
         relatedPoints.push_back(touchEvent.touchPointInRootFrame(i));
     }
   }
   return relatedPoints;
 }
 
 }  // namespace
 
 PointerEventManager::PointerEventManager(LocalFrame& frame,
                                          MouseEventManager& mouseEventManager)
@@ skipping 662 matching lines @@
     if (firstId > uniqueTouchEventId)
       return false;
     m_touchIdsForCanceledPointerdowns.takeFirst();
     if (firstId == uniqueTouchEventId)
       return true;
   }
   return false;
 }
 
 }  // namespace blink