Remove ID from ui::PointerEvent's constructors

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 1051 matching lines @@
     default:
       NOTREACHED();
   }
   latency()->set_source_event_type(ui::SourceEventType::TOUCH);
 }
 
 PointerEvent::PointerEvent(EventType type,
                            const gfx::Point& location,
                            const gfx::Point& root_location,
                            int flags,
-                           int pointer_id,
                            int changed_button_flags,
                            const PointerDetails& pointer_details,
                            base::TimeTicks time_stamp)
     : LocatedEvent(type,
                    gfx::PointF(location),
                    gfx::PointF(root_location),
                    time_stamp,
                    flags),
       changed_button_flags_(changed_button_flags),
       details_(pointer_details) {
-  details_.id = pointer_id;
   if (details_.pointer_type == EventPointerType::POINTER_TYPE_TOUCH)
     latency()->set_source_event_type(ui::SourceEventType::TOUCH);
   else if (type == ET_POINTER_WHEEL_CHANGED)
     latency()->set_source_event_type(ui::SourceEventType::WHEEL);
   else
     latency()->set_source_event_type(ui::SourceEventType::OTHER);
 }
 
 const int PointerEvent::kMousePointerId = std::numeric_limits<int32_t>::max();
 
@@ skipping 344 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