Implement rudimentary touchscreen support in mus.

components/mus/ws/display.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 "components/mus/ws/display.h"
 
 #include <set>
 #include <vector>
 
 #include "base/debug/debugger.h"
@@ skipping 126 matching lines @@
 const WindowManagerState* Display::GetWindowManagerStateForUser(
     const UserId& user_id) const {
   auto iter = window_manager_state_map_.find(user_id);
   return iter == window_manager_state_map_.end() ? nullptr : iter->second.get();
 }
 
 mojom::Rotation Display::GetRotation() const {
   return platform_display_->GetRotation();
 }
 
+gfx::Size Display::GetSize() const {
+  return root_->bounds().size();
+}
+
+int64_t Display::GetPlatformDisplayId() const {
+  return platform_display_->GetDisplayId();
+}
+
 const WindowManagerState* Display::GetActiveWindowManagerState() const {
   return GetWindowManagerStateForUser(
       window_server_->user_id_tracker()->active_id());
 }
 
 bool Display::SetFocusedWindow(ServerWindow* new_focused_window) {
   ServerWindow* old_focused_window = focus_controller_->GetFocusedWindow();
   if (old_focused_window == new_focused_window)
     return true;
   DCHECK(!new_focused_window || root_window()->Contains(new_focused_window));
@@ skipping 289 matching lines @@
 }
 
 void Display::OnWindowManagerWindowTreeFactoryReady(
     WindowManagerWindowTreeFactory* factory) {
   if (!binding_)
     CreateWindowManagerStateFromFactory(factory);
 }
 
 }  // namespace ws
 }  // namespace mus