Redefined the bit WebTouchEvent.causesScrollingIfUncanceled.

content/common/input/web_input_event_traits.cc

 // Copyright 2013 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 "content/common/input/web_input_event_traits.h"
 
 #include <bitset>
 #include <limits>
 
 #include "base/logging.h"
@@ skipping 96 matching lines @@
   point.force,
   point.tiltX,
   point.tiltY);
 }
 
 void ApppendEventDetails(const WebTouchEvent& event, std::string* result) {
   StringAppendF(result,
                 "{\n Touches: %u, Cancelable: %d, CausesScrolling: %d,"
                 " uniqueTouchEventId: %u\n[\n",
                 event.touchesLength, event.cancelable,
-                event.causesScrollingIfUncanceled, event.uniqueTouchEventId);
+                event.movedBeyondSlopRegion, event.uniqueTouchEventId);
   for (unsigned i = 0; i < event.touchesLength; ++i)
     ApppendTouchPointDetails(event.touches[i], result);
   result->append(" ]\n}");
 }
 
 bool CanCoalesce(const WebKeyboardEvent& event_to_coalesce,
                  const WebKeyboardEvent& event) {
   return false;
 }
 
@@ skipping 105 matching lines @@
   // correct state, i.e. the touch-points that moved in the last event, but
   // didn't change in the current event, will have Stationary state. It is
   // necessary to change them back to Moved state.
   WebTouchEvent old_event = *event;
   *event = event_to_coalesce;
   for (unsigned i = 0; i < event->touchesLength; ++i) {
     int i_old = GetIndexOfTouchID(old_event, event->touches[i].id);
     if (old_event.touches[i_old].state == blink::WebTouchPoint::StateMoved)
       event->touches[i].state = blink::WebTouchPoint::StateMoved;
   }
-  event->causesScrollingIfUncanceled |= old_event.causesScrollingIfUncanceled;
+  event->movedBeyondSlopRegion |= old_event.movedBeyondSlopRegion;
 }
 
 bool CanCoalesce(const WebGestureEvent& event_to_coalesce,
                  const WebGestureEvent& event) {
   if (event.type != event_to_coalesce.type ||
       event.sourceDevice != event_to_coalesce.sourceDevice ||
       event.modifiers != event_to_coalesce.modifiers)
     return false;
 
   if (event.type == WebInputEvent::GestureScrollUpdate)
@@ skipping 240 matching lines @@
 
 uint32_t WebInputEventTraits::GetUniqueTouchEventId(
     const WebInputEvent& event) {
   if (WebInputEvent::isTouchEventType(event.type)) {
     return static_cast<const WebTouchEvent&>(event).uniqueTouchEventId;
   }
   return 0U;
 }
 
 }  // namespace content