mus: Implement ScreenMus::GetCursorScreenPoint().

ui/views/mus/window_manager_connection.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 "ui/views/mus/window_manager_connection.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/threading/thread_local.h"
@@ skipping 55 matching lines @@
   std::map<std::string, std::vector<uint8_t>> properties = props;
   NativeWidgetMus::ConfigurePropertiesForNewWindow(init_params, &properties);
   return new NativeWidgetMus(delegate, connector_, NewWindow(properties),
                              mus::mojom::SurfaceType::DEFAULT);
 }
 
 WindowManagerConnection::WindowManagerConnection(shell::Connector* connector)
     : connector_(connector), window_tree_connection_(nullptr) {
   window_tree_connection_.reset(
       mus::WindowTreeConnection::Create(this, connector_));
+  window_tree_connection_->InitializeCursorLocation();
 
   screen_.reset(new ScreenMus(this));
   screen_->Init(connector);
 
   // TODO(sad): We should have a DeviceDataManager implementation that talks to
   // a mojo service to learn about the input-devices on the system.
   // http://crbug.com/601981
   ui::DeviceDataManager::CreateInstance();
 
   ViewsDelegate::GetInstance()->set_native_widget_factory(base::Bind(
@@ skipping 13 matching lines @@
 void WindowManagerConnection::OnEmbed(mus::Window* root) {}
 
 void WindowManagerConnection::OnConnectionLost(
     mus::WindowTreeConnection* connection) {}
 
 void WindowManagerConnection::OnWindowManagerFrameValuesChanged() {
   if (window_tree_connection_)
     NativeWidgetMus::NotifyFrameChanged(window_tree_connection_.get());
 }
 
+gfx::Point WindowManagerConnection::GetCursorScreenPoint() {
+  return window_tree_connection_->GetCursorScreenPoint();
+}
+
 }  // namespace views