Articulate the cancel behavior in the WebTouchEvent.

components/test_runner/event_sender.cc

 // Copyright 2014 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 "components/test_runner/event_sender.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 1993 matching lines @@
 void EventSender::SendCurrentTouchEvent(WebInputEvent::Type type,
                                         bool movedBeyondSlopRegion) {
   DCHECK_GT(static_cast<unsigned>(WebTouchEvent::touchesLengthCap),
             touch_points_.size());
   if (force_layout_on_events_)
     view_->updateAllLifecyclePhases();
 
   WebTouchEvent touch_event;
   touch_event.type = type;
   touch_event.modifiers = touch_modifiers_;
-  touch_event.cancelable = touch_cancelable_;
+  touch_event.dispatchType = touch_cancelable_
+                                 ? WebInputEvent::Blocking
+                                 : WebInputEvent::EventNonBlocking;
   touch_event.timeStampSeconds = GetCurrentEventTimeSec();
   touch_event.movedBeyondSlopRegion = movedBeyondSlopRegion;
   touch_event.touchesLength = touch_points_.size();
   for (size_t i = 0; i < touch_points_.size(); ++i)
     touch_event.touches[i] = touch_points_[i];
   HandleInputEventOnViewOrPopup(touch_event);
 
   for (size_t i = 0; i < touch_points_.size(); ++i) {
     WebTouchPoint* touch_point = &touch_points_[i];
     if (touch_point->state == WebTouchPoint::StateReleased
@@ skipping 590 matching lines @@
                                  &end_event);
   end_event.data.scrollEnd.deltaUnits =
       begin_event.data.scrollBegin.deltaHintUnits;
 
   if (force_layout_on_events_)
     view_->updateAllLifecyclePhases();
   HandleInputEventOnViewOrPopup(end_event);
 }
 
 }  // namespace test_runner