Change ui cursor identifiers to an enum class.

ui/aura/window_tree_host_x11.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/window_tree_host_x11.h"
 
 #include <strings.h>
 #include <X11/cursorfont.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/extensions/Xrandr.h>
@@ skipping 102 matching lines @@
 
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // WindowTreeHostX11
 
 WindowTreeHostX11::WindowTreeHostX11(const gfx::Rect& bounds)
     : xdisplay_(gfx::GetXDisplay()),
       xwindow_(0),
       x_root_window_(DefaultRootWindow(xdisplay_)),
-      current_cursor_(ui::kCursorNull),
+      current_cursor_(ui::CursorType::kNull),
       window_mapped_(false),
       bounds_(bounds),
       atom_cache_(xdisplay_, kAtomsToCache) {
   XSetWindowAttributes swa;
   memset(&swa, 0, sizeof(swa));
   swa.background_pixmap = None;
   swa.bit_gravity = NorthWestGravity;
   swa.override_redirect = ui::UseTestConfigForPlatformWindows();
   xwindow_ = XCreateWindow(
       xdisplay_, x_root_window_,
@@ skipping 433 matching lines @@
     ui::LocatedEvent* event) {
   SendEventToSink(event);
 }
 
 // static
 WindowTreeHost* WindowTreeHost::Create(const gfx::Rect& bounds_in_pixels) {
   return new WindowTreeHostX11(bounds_in_pixels);
 }
 
 }  // namespace aura