Cleanup: Remove unneeded forward declarations in views.

views/widget/native_widget_wayland.h

 // Copyright (c) 2011 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 VIEWS_WIDGET_NATIVE_WIDGET_WAYLAND_H_
 #define VIEWS_WIDGET_NATIVE_WIDGET_WAYLAND_H_
 #pragma once
 
 #include <wayland-client.h>
 
@@ skipping 16 matching lines @@
 }
 }
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 class ViewProp;
 class WaylandDisplay;
-class WaylandInputDevice;
 class WaylandWindow;
 }
 
 namespace views {
 
 namespace internal {
 class NativeWidgetDelegate;
 }
 
 // Widget implementation for Wayland
@@ skipping 159 matching lines @@
   // and the compositor will have these, so we don't need to worry about them.
   scoped_refptr<gfx::GLSurface> surface_;
   scoped_refptr<gfx::GLContext> context_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWayland);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_WIDGET_NATIVE_WIDGET_WAYLAND_H_