Keep non-key event handling in-house for NativeWidgetMus

ui/views/mus/native_widget_mus.h

 // 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.
 
 #ifndef UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 #define UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 11 matching lines @@
 #include "ui/views/mus/mus_export.h"
 #include "ui/views/mus/window_tree_host_mus.h"
 #include "ui/views/widget/native_widget_private.h"
 
 namespace aura {
 namespace client {
 class DefaultCaptureClient;
 class ScreenPositionClient;
 class WindowTreeClient;
 }
+class EnvInputStateController;
 class Window;
 }
 
 namespace mus {
 class Window;
 class WindowTreeConnection;
 namespace mojom {
 enum class Cursor;
 enum class EventResult;
 }
@@ skipping 219 matching lines @@
 
   // Aura configuration.
   std::unique_ptr<SurfaceContextFactory> context_factory_;
   std::unique_ptr<WindowTreeHostMus> window_tree_host_;
   aura::Window* content_;
   std::unique_ptr<wm::FocusController> focus_client_;
   std::unique_ptr<MusCaptureClient> capture_client_;
   std::unique_ptr<aura::client::WindowTreeClient> window_tree_client_;
   std::unique_ptr<aura::client::ScreenPositionClient> screen_position_client_;
   std::unique_ptr<wm::CursorManager> cursor_manager_;
+  std::unique_ptr<aura::EnvInputStateController> aura_env_controller_;
   base::WeakPtrFactory<NativeWidgetMus> close_widget_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMus);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_