Rework ash::CursorManager into a corewm object, to share code with desktop.

ash/test/shell_test_api.h

 // 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.
 
 #ifndef ASH_TEST_SHELL_TEST_API_H_
 #define ASH_TEST_SHELL_TEST_API_H_
 
 #include "base/basictypes.h"
 
 namespace views {
 namespace corewm {
 class InputMethodEventFilter;
 }  // namespace corewm
 }  // namespace views
 
 namespace ash {
+class AshNativeCursorManager;
 class Shell;
 class LauncherModel;
 
 namespace internal {
 class RootWindowLayoutManager;
 class ScreenPositionController;
 class SystemGestureEventFilter;
 class WorkspaceController;
 }  // namespace internal
 
 namespace test {
 
 // Accesses private data from a Shell for testing.
 class ShellTestApi {
 public:
   explicit ShellTestApi(Shell* shell);
 
   internal::RootWindowLayoutManager* root_window_layout();
   views::corewm::InputMethodEventFilter* input_method_event_filter();
   internal::SystemGestureEventFilter* system_gesture_event_filter();
   internal::WorkspaceController* workspace_controller();
   internal::ScreenPositionController* screen_position_controller();
+  AshNativeCursorManager* ash_native_cursor_manager();
   LauncherModel* launcher_model();
 
  private:
   Shell* shell_;  // not owned
 
   DISALLOW_COPY_AND_ASSIGN(ShellTestApi);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_SHELL_TEST_API_H_