mus: Changes SetDisplayRoot() to create actual display

services/ui/ws/window_tree.h

 // 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.
 
 #ifndef SERVICES_UI_WS_WINDOW_TREE_H_
 #define SERVICES_UI_WS_WINDOW_TREE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 365 matching lines @@
 
   // Calls OnChangeCompleted() on the client.
   void NotifyChangeCompleted(uint32_t change_id,
                              mojom::WindowManagerErrorCode error_code);
 
   // Callback for when WmMoveDragImage completes. This sends off the next
   // queued move under the image if the mouse had further moves while we were
   // waiting for the last move to be acknowledged.
   void OnWmMoveDragImageAck();
 
-  // Called from SetDisplayRoot(), see mojom for details.
-  bool ProcessSetDisplayRoot(int64_t display_id,
-                             const ClientWindowId& client_window_id);
+  // Called from SetDisplayRoot(), see mojom for details. Returns the root
+  // of the display if successful, otherwise null.
+  ServerWindow* ProcessSetDisplayRoot(
+      const display::Display& display_to_create,
+      const mojom::WmViewportMetrics& transport_viewport_metrics,
+      bool is_primary_display,
+      const ClientWindowId& client_window_id);
 
   // WindowTree:
   void NewWindow(uint32_t change_id,
                  Id transport_window_id,
                  const base::Optional<
                      std::unordered_map<std::string, std::vector<uint8_t>>>&
                      transport_properties) override;
   void NewTopLevelWindow(
       uint32_t change_id,
       Id transport_window_id,
@@ skipping 90 matching lines @@
   void CancelWindowMove(Id window_id) override;
 
   // mojom::WindowManagerClient:
   void AddAccelerators(std::vector<mojom::WmAcceleratorPtr> accelerators,
                        const AddAcceleratorsCallback& callback) override;
   void RemoveAccelerator(uint32_t id) override;
   void AddActivationParent(Id transport_window_id) override;
   void RemoveActivationParent(Id transport_window_id) override;
   void ActivateNextWindow() override;
   void SetExtendedHitArea(Id window_id, const gfx::Insets& hit_area) override;
-  void SetDisplayRoot(int64_t display_id,
+  void SetDisplayRoot(const display::Display& display,
+                      mojom::WmViewportMetricsPtr viewport_metrics,
+                      bool is_primary_display,
                       Id window_id,
                       const SetDisplayRootCallback& callback) override;
   void WmResponse(uint32_t change_id, bool response) override;
   void WmSetBoundsResponse(uint32_t change_id) override;
   void WmRequestClose(Id transport_window_id) override;
   void WmSetFrameDecorationValues(
       mojom::FrameDecorationValuesPtr values) override;
   void WmSetNonClientCursor(uint32_t window_id,
                             mojom::CursorType cursor_id) override;
   void OnWmCreatedTopLevelWindow(uint32_t change_id,
@@ skipping 113 matching lines @@
   // a image move. All weak ptrs are invalidated when a drag is completed.
   base::WeakPtrFactory<WindowTree> drag_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTree);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_WINDOW_TREE_H_