Redefined the bit WebTouchEvent.causesScrollingIfUncanceled.

components/html_viewer/touch_handler.cc

 // Copyright 2015 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/html_viewer/touch_handler.h"
 
 #include "components/mus/public/interfaces/input_events.mojom.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebWidget.h"
 #include "ui/events/base_event_utils.h"
@@ skipping 164 matching lines @@
   return false;
 }
 
 void TouchHandler::SendMotionEventToGestureProvider() {
   ui::FilteredGestureProvider::TouchHandlingResult result =
       gesture_provider_.OnTouchEvent(*current_motion_event_);
   if (!result.succeeded)
     return;
 
   blink::WebTouchEvent web_event = ui::CreateWebTouchEventFromMotionEvent(
-      *current_motion_event_, result.did_generate_scroll);
+      *current_motion_event_, result.moved_beyond_slop_region);
   gesture_provider_.OnTouchEventAck(web_event.uniqueTouchEventId,
                                     web_widget_->handleInputEvent(web_event) !=
                                         blink::WebInputEventResult::NotHandled);
 }
 
 void TouchHandler::PostProcessMotionEvent(const mus::mojom::Event& event) {
   switch (event.action) {
     case mus::mojom::EventType::POINTER_UP: {
       if (event.pointer_data) {
         const int index = current_motion_event_->FindPointerIndexOfId(
             event.pointer_data->pointer_id);
         current_motion_event_->RemovePointerAt(index);
       }
       if (current_motion_event_->GetPointerCount() == 0)
         current_motion_event_.reset();
       break;
     }
 
     case mus::mojom::EventType::POINTER_CANCEL:
       current_motion_event_.reset();
       break;
 
     default:
       break;
   }
 }
 
 }  // namespace html_viewer