Use ui::Event instead of mojom::EventPtr in mash/wm.

components/mus/public/cpp/lib/window_tree_client_impl.cc

 // Copyright 2014 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/mus/public/cpp/lib/window_tree_client_impl.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 929 matching lines @@
     mojo::Map<mojo::String, mojo::Array<uint8_t>> transport_properties) {
   std::map<std::string, std::vector<uint8_t>> properties =
       transport_properties.To<std::map<std::string, std::vector<uint8_t>>>();
   Window* window =
       window_manager_delegate_->OnWmCreateTopLevelWindow(&properties);
   window_manager_internal_client_->OnWmCreatedTopLevelWindow(change_id,
                                                              window->id());
 }
 
 void WindowTreeClientImpl::OnAccelerator(uint32_t id, mojom::EventPtr event) {
-  window_manager_delegate_->OnAccelerator(id, std::move(event));
+  window_manager_delegate_->OnAccelerator(
+      id, *event.To<scoped_ptr<ui::Event>>().get());
 }
 
 void WindowTreeClientImpl::SetFrameDecorationValues(
     mojom::FrameDecorationValuesPtr values) {
   window_manager_internal_client_->WmSetFrameDecorationValues(
       std::move(values));
 }
 
 void WindowTreeClientImpl::AddAccelerator(
     uint32_t id,
@@ skipping 21 matching lines @@
 
 void WindowTreeClientImpl::SetUnderlaySurfaceOffsetAndExtendedHitArea(
     Window* window,
     const gfx::Vector2d& offset,
     const gfx::Insets& hit_area) {
   window_manager_internal_client_->SetUnderlaySurfaceOffsetAndExtendedHitArea(
       window->id(), offset.x(), offset.y(), mojo::Insets::From(hit_area));
 }
 
 }  // namespace mus