Redefined the bit WebTouchEvent.causesScrollingIfUncanceled.

content/browser/renderer_host/input/touch_emulator.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/touch_emulator.h"
 
 #include "build/build_config.h"
 #include "content/browser/renderer_host/input/motion_event_web.h"
 #include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/common/input/web_touch_event_traits.h"
@@ skipping 232 matching lines @@
   // Do not allow middle-sequence event to pass through, if start was blocked.
   if (!emulated_stream_active_sequence_count_ && !is_sequence_start) {
     gesture_provider_->OnTouchEventAck(event.uniqueTouchEventId,
                                        event_consumed);
     return;
   }
 
   if (is_sequence_start)
     emulated_stream_active_sequence_count_++;
 
-  event.causesScrollingIfUncanceled = result.did_generate_scroll;
+  event.movedBeyondSlopRegion = result.moved_beyond_slop_region;
   client_->ForwardEmulatedTouchEvent(event);
 }
 
 bool TouchEmulator::HandleTouchEventAck(
     const blink::WebTouchEvent& event, InputEventAckState ack_result) {
   bool is_sequence_end = WebTouchEventTraits::IsTouchSequenceEnd(event);
   if (emulated_stream_active_sequence_count_) {
     if (is_sequence_end)
       emulated_stream_active_sequence_count_--;
 
@@ skipping 185 matching lines @@
   point.screenPosition.y = mouse_event.globalY;
   point.tiltX = 0;
   point.tiltY = 0;
 }
 
 bool TouchEmulator::InPinchGestureMode() const {
   return shift_pressed_;
 }
 
 }  // namespace content