Add id properties to PointerEvent

services/ui/ws/event_dispatcher.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 "services/ui/ws/event_dispatcher.h"
 
 #include <algorithm>
 
 #include "base/memory/ptr_util.h"
 #include "base/time/time.h"
@@ skipping 352 matching lines @@
     if (drag_controller_->DispatchPointerEvent(event, target.window))
       return;
   }
 
   if (capture_window_) {
     mouse_cursor_source_window_ = capture_window_;
     DispatchToClient(capture_window_, capture_window_client_id_, event);
     return;
   }
 
-  const int32_t pointer_id = event.pointer_id();
+  const int32_t pointer_id = event.pointer_details().id;
   if (!IsTrackingPointer(pointer_id) ||
       !pointer_targets_[pointer_id].is_pointer_down) {
     const bool any_pointers_down = AreAnyPointersDown();
     UpdateTargetForPointer(pointer_id, event);
     if (is_mouse_event)
       mouse_cursor_source_window_ = pointer_targets_[pointer_id].window;
 
     PointerTarget& pointer_target = pointer_targets_[pointer_id];
     if (pointer_target.is_pointer_down) {
       if (is_mouse_event)
@@ skipping 258 matching lines @@
   if (mouse_cursor_source_window_ == window)
     mouse_cursor_source_window_ = nullptr;
 }
 
 void EventDispatcher::OnDragCursorUpdated() {
   delegate_->UpdateNativeCursorFromDispatcher();
 }
 
 }  // namespace ws
 }  // namespace ui