MacViews: Reveal scrollbars when resting on the trackpad.

ui/events/event.cc

 // Copyright (c) 2012 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 "ui/events/event.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 
@@ skipping 1370 matching lines @@
 }
 
 ScrollEvent::ScrollEvent(EventType type,
                          const gfx::Point& location,
                          base::TimeTicks time_stamp,
                          int flags,
                          float x_offset,
                          float y_offset,
                          float x_offset_ordinal,
                          float y_offset_ordinal,
-                         int finger_count)
+                         int finger_count,
+                         EventMomentumPhase momentum_phase)
     : MouseEvent(type, location, location, time_stamp, flags, 0),
       x_offset_(x_offset),
       y_offset_(y_offset),
       x_offset_ordinal_(x_offset_ordinal),
       y_offset_ordinal_(y_offset_ordinal),
-      finger_count_(finger_count) {
+      finger_count_(finger_count),
+      momentum_phase_(momentum_phase) {
   CHECK(IsScrollEvent());
   latency()->set_source_event_type(ui::SourceEventType::WHEEL);
 }
 
 void ScrollEvent::Scale(const float factor) {
   x_offset_ *= factor;
   y_offset_ *= factor;
   x_offset_ordinal_ *= factor;
   y_offset_ordinal_ *= factor;
 }
@@ skipping 14 matching lines @@
                    flags | EF_FROM_TOUCH),
       details_(details),
       unique_touch_event_id_(unique_touch_event_id) {
   latency()->set_source_event_type(ui::SourceEventType::TOUCH);
 }
 
 GestureEvent::~GestureEvent() {
 }
 
 }  // namespace ui