Adding Ozone CursorLoader and necessary API functions to allow setting the cursor in SoftwareFactor…

ui/base/cursor/cursor_loader_null.cc

Index: ui/base/cursor/cursor_loader_null.cc
diff --git a/ui/base/cursor/cursor_loader_null.cc b/ui/base/cursor/cursor_loader_null.cc
deleted file mode 100644
index 51ced4cde37339c137a760e5421350ae66526540..0000000000000000000000000000000000000000
--- a/ui/base/cursor/cursor_loader_null.cc
+++ /dev/null
@@ -1,25 +0,0 @@
-// 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/base/cursor/cursor_loader_null.h"
-
-namespace ui {
-
-CursorLoader* CursorLoader::Create() {
-  return new CursorLoaderNull;
-}
-
-CursorLoaderNull::CursorLoaderNull() {}
-CursorLoaderNull::~CursorLoaderNull() {}
-void CursorLoaderNull::LoadImageCursor(int id,
-                                        int resource_id,
-                                        const gfx::Point& hot) {}
-void CursorLoaderNull::LoadAnimatedCursor(int id,
-                                           int resource_id,
-                                           const gfx::Point& hot,
-                                           int frame_delay_ms) {}
-void CursorLoaderNull::UnloadAll() {}
-void CursorLoaderNull::SetPlatformCursor(gfx::NativeCursor* cursor) {}
-
-}  // namespace ui