Mark touchcancel events as uncancelable

content/browser/renderer_host/input/motion_event_web.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 "content/browser/renderer_host/input/motion_event_web.h"
 
 #include "base/logging.h"
 
 using blink::WebInputEvent;
 using blink::WebTouchEvent;
@@ skipping 129 matching lines @@
 }
 
 scoped_ptr<ui::MotionEvent> MotionEventWeb::Clone() const {
   return scoped_ptr<MotionEvent>(new MotionEventWeb(event_));
 }
 
 scoped_ptr<ui::MotionEvent> MotionEventWeb::Cancel() const {
   WebTouchEvent cancel_event(event_);
 
   cancel_event.type = WebInputEvent::TouchCancel;
+  cancel_event.cancelable = false;
   for (size_t i = 0; i < cancel_event.touchesLength; ++i)
     cancel_event.touches[i].state = WebTouchPoint::StateCancelled;
 
   return scoped_ptr<MotionEvent>(new MotionEventWeb(cancel_event));
 }
 
 }  // namespace content