Change ui cursor identifiers to an enum class.

ui/ozone/public/cursor_factory_ozone.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 "ui/ozone/public/cursor_factory_ozone.h"
 
 #include "base/logging.h"
 
 namespace ui {
 
 // static
 CursorFactoryOzone* CursorFactoryOzone::impl_ = NULL;
 
 CursorFactoryOzone::CursorFactoryOzone() {
   DCHECK(!impl_) << "There should only be a single CursorFactoryOzone.";
   impl_ = this;
 }
 
 CursorFactoryOzone::~CursorFactoryOzone() {
   DCHECK_EQ(impl_, this);
   impl_ = NULL;
 }
 
 CursorFactoryOzone* CursorFactoryOzone::GetInstance() {
   DCHECK(impl_) << "No CursorFactoryOzone implementation set.";
   return impl_;
 }
 
-PlatformCursor CursorFactoryOzone::GetDefaultCursor(int type) {
+PlatformCursor CursorFactoryOzone::GetDefaultCursor(CursorType type) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 PlatformCursor CursorFactoryOzone::CreateImageCursor(const SkBitmap& bitmap,
                                                      const gfx::Point& hotspot,
                                                      float bitmap_dpi) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 PlatformCursor CursorFactoryOzone::CreateAnimatedCursor(
     const std::vector<SkBitmap>& bitmaps,
     const gfx::Point& hotspot,
     int frame_delay_ms,
     float bitmap_dpi) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 void CursorFactoryOzone::RefImageCursor(PlatformCursor cursor) {
   NOTIMPLEMENTED();
 }
 
 void CursorFactoryOzone::UnrefImageCursor(PlatformCursor cursor) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace ui