Add {Lock,Unlock,Show,Hide}Cursor() to the window manager mojom.

services/ui/public/interfaces/window_manager.mojom

 // 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.
 
 module ui.mojom;
 
 import "cc/ipc/frame_sink_id.mojom";
 import "cc/ipc/local_surface_id.mojom";
 import "services/ui/public/interfaces/cursor/cursor.mojom";
 import "services/ui/public/interfaces/event_matcher.mojom";
@@ skipping 281 matching lines @@
   // specified window.
   WmRequestClose(uint32 window_id);
 
   // Sets the frame decoration constants of the display the window manager is
   // associated with.
   WmSetFrameDecorationValues(FrameDecorationValues values);
 
   // Sets the cursor that the non-client areas of the window should use.
   WmSetNonClientCursor(uint32 window_id, CursorData cursor);
 
+  // Locks and unlocks the cursor globally. Used during window management tasks
+  // where the cursor shouldn't change.
+  WmLockCursor();
+  WmUnlockCursor();
+
+  // Shows and hides the cursor globally. Used during window management tasks.
+  WmSetCursorVisible(bool visible);
+
+  // Sets a global cursor which overrides per-window cursors. Pass null to
+  // clear.
+  WmSetGlobalOverrideCursor(CursorData? cursor);
+
   // Response from WmCreateTopLevelWindow() informing the client of the id for
   // the new window.
   OnWmCreatedTopLevelWindow(uint32 change_id, uint32 window_id);
 
   // See description in WindowManager::OnAccelerator(). |ack_id| is the value
   // that was passed to OnAccelerator(). If the accelerator is a pre-target
   // handler and |event_result| is UNHANDLED, then |properties| is added to
   // the KeyEvent that is dispatched to the client with the focused window.
   OnAcceleratorAck(uint32 ack_id,
                    EventResult event_result,
                    map<string, array<uint8>> properties);
 };