Makes sure bounds and visibilty are updated correctly for new displays

ui/aura/test/test_screen.cc

 // Copyright (c) 2012 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/aura/test/test_screen.h"
 
 #include <stdint.h>
 
 #include "base/logging.h"
 #include "ui/aura/env.h"
 #include "ui/aura/mus/window_tree_client.h"
+#include "ui/aura/mus/window_tree_host_mus.h"
 #include "ui/aura/test/mus/window_tree_client_private.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace aura {
@@ skipping 140 matching lines @@
 TestScreen::TestScreen(const gfx::Rect& screen_bounds,
                        WindowTreeClient* window_tree_client)
     : host_(nullptr), ui_scale_(1.0f), window_tree_client_(window_tree_client) {
   static int64_t synthesized_display_id = 2000;
   display::Display display(synthesized_display_id++);
   display.SetScaleAndBounds(1.0f, screen_bounds);
   ProcessDisplayChanged(display, true /* is_primary */);
 }
 
 }  // namespace aura