Add id properties to PointerEvent

ui/events/mojo/event_struct_traits.cc

 // Copyright 2016 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/mojo/event_struct_traits.h"
 
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/dom/keycode_converter.h"
 #include "ui/events/mojo/event_constants.mojom.h"
@@ skipping 148 matching lines @@
 }
 
 ui::mojom::PointerDataPtr
 StructTraits<ui::mojom::EventDataView, EventUniquePtr>::pointer_data(
     const EventUniquePtr& event) {
   if (!event->IsPointerEvent())
     return nullptr;
 
   const ui::PointerEvent* pointer_event = event->AsPointerEvent();
   ui::mojom::PointerDataPtr pointer_data(ui::mojom::PointerData::New());
-  pointer_data->pointer_id = pointer_event->pointer_id();
+  pointer_data->pointer_id = pointer_event->pointer_details().id;
   pointer_data->changed_button_flags = pointer_event->changed_button_flags();
   const ui::PointerDetails* pointer_details = &pointer_event->pointer_details();
 
   switch (pointer_details->pointer_type) {
     case ui::EventPointerType::POINTER_TYPE_MOUSE:
       pointer_data->kind = ui::mojom::PointerKind::MOUSE;
       break;
     case ui::EventPointerType::POINTER_TYPE_TOUCH:
       pointer_data->kind = ui::mojom::PointerKind::TOUCH;
       break;
@@ skipping 125 matching lines @@
       }
     }
     case ui::mojom::EventType::UNKNOWN:
       return false;
   }
 
   return false;
 }
 
 }  // namespace mojo