Revert of Mandoline: Remove native_viewport.mojom

components/view_manager/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 "components/view_manager/event_dispatcher.h"
 
 #include "components/view_manager/connection_manager.h"
 #include "components/view_manager/server_view.h"
 #include "components/view_manager/view_coordinate_conversions.h"
 #include "components/view_manager/view_locator.h"
@@ skipping 12 matching lines @@
 void EventDispatcher::AddAccelerator(mojo::KeyboardCode keyboard_code,
                                      mojo::EventFlags flags) {
   accelerators_.insert(Accelerator(keyboard_code, flags));
 }
 
 void EventDispatcher::RemoveAccelerator(mojo::KeyboardCode keyboard_code,
                                         mojo::EventFlags flags) {
   accelerators_.erase(Accelerator(keyboard_code, flags));
 }
 
-void EventDispatcher::OnEvent(mojo::EventPtr event) {
+void EventDispatcher::OnEvent(mojo::EventPtr event,
+                              const OnEventCallback& callback) {
+  callback.Run();
+
   if (event->pointer_data) {
     const gfx::Point root_point(static_cast<int>(event->pointer_data->x),
                                 static_cast<int>(event->pointer_data->y));
     ServerView* target = connection_manager_->GetFocusedView();
+    ;
     if (event->action == mojo::EVENT_TYPE_POINTER_DOWN || !target) {
       target = FindDeepestVisibleView(connection_manager_->root(), root_point);
       CHECK(target);
       connection_manager_->SetFocusedView(target);
     }
     const gfx::PointF local_point(ConvertPointFBetweenViews(
         connection_manager_->root(), target,
         gfx::PointF(event->pointer_data->x, event->pointer_data->y)));
     event->pointer_data->x = local_point.x();
     event->pointer_data->y = local_point.y();
     connection_manager_->DispatchInputEventToView(target, event.Pass());
   } else if (event->action == mojo::EVENT_TYPE_KEY_PRESSED &&
              accelerators_.count(Accelerator(event->key_data->windows_key_code,
                                              event->flags))) {
     connection_manager_->view_manager_root_client()->OnAccelerator(
         event.Pass());
   } else {
     ServerView* focused_view = connection_manager_->GetFocusedView();
     if (focused_view)
       connection_manager_->DispatchInputEventToView(focused_view, event.Pass());
   }
 }
 
 }  // namespace view_manager