Add pointer id to the WebMouseEvent's constructors

services/ui/ws/window_manager_state.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 "services/ui/ws/window_manager_state.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 171 matching lines @@
 void WindowManagerState::ReleaseCaptureBlockedByAnyModalWindow() {
   event_dispatcher_.ReleaseCaptureBlockedByAnyModalWindow();
 }
 
 void WindowManagerState::SetDragDropSourceWindow(
     DragSource* drag_source,
     ServerWindow* window,
     DragTargetConnection* source_connection,
     const std::unordered_map<std::string, std::vector<uint8_t>>& drag_data,
     uint32_t drag_operation) {
-  int32_t drag_pointer = MouseEvent::kMousePointerId;
+  int32_t drag_pointer = MouseEvent::kDefaultMousePointerId;
   if (in_flight_event_details_ &&
       in_flight_event_details_->event->IsPointerEvent()) {
     drag_pointer =
         in_flight_event_details_->event->AsPointerEvent()->pointer_details().id;
   } else {
     NOTIMPLEMENTED() << "Set drag drop set up during something other than a "
                      << "pointer event; rejecting drag.";
     drag_source->OnDragCompleted(false, ui::mojom::kDropEffectNone);
     return;
   }
@@ skipping 497 matching lines @@
       window->RemoveObserver(this);
       orphaned_window_manager_display_roots_.erase(iter);
       return;
     }
   }
   NOTREACHED();
 }
 
 }  // namespace ws
 }  // namespace ui