Handle modified displays in mustash.

services/ui/ws/window_tree.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 "services/ui/ws/window_tree.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 201 matching lines @@
   // Notify our client if |tree| was embedded in any of our windows.
   for (const auto* tree_root : tree->roots_) {
     const bool owns_tree_root = tree_root->id().client_id == id_;
     if (owns_tree_root) {
       client()->OnEmbeddedAppDisconnected(
           ClientWindowIdForWindow(tree_root).id);
     }
   }
 }
 
+void WindowTree::OnWmDisplayModified(const display::Display& display) {
+  window_manager_internal_->WmDisplayModified(display);
+}
+
 void WindowTree::NotifyChangeCompleted(
     uint32_t change_id,
     mojom::WindowManagerErrorCode error_code) {
   client()->OnChangeCompleted(
       change_id, error_code == mojom::WindowManagerErrorCode::SUCCESS);
 }
 
 bool WindowTree::SetCapture(const ClientWindowId& client_window_id) {
   ServerWindow* window = GetWindowByClientId(client_window_id);
   WindowManagerDisplayRoot* display_root = GetWindowManagerDisplayRoot(window);
@@ skipping 1704 matching lines @@
   client()->OnCompleteDrop(client_window_id.id, event_flags, cursor_offset,
                            effect_bitmask, callback);
 }
 
 void WindowTree::PerformOnDragDropDone() {
   client()->OnDragDropDone();
 }
 
 }  // namespace ws
 }  // namespace ui