Implement cursor compositing mode on Ash

ash/shell.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 "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_filter.h"
 #include "ash/accelerators/focus_manager_factory.h"
 #include "ash/accelerators/nested_dispatcher_controller.h"
 #include "ash/ash_switches.h"
 #include "ash/autoclick/autoclick_controller.h"
 #include "ash/caps_lock_delegate.h"
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/desktop_background/desktop_background_view.h"
 #include "ash/desktop_background/user_wallpaper_delegate.h"
+#include "ash/display/cursor_window_controller.h"
 #include "ash/display/display_controller.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/event_transformation_handler.h"
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/display/screen_position_controller.h"
 #include "ash/display/virtual_keyboard_window_controller.h"
 #include "ash/drag_drop/drag_drop_controller.h"
 #include "ash/first_run/first_run_helper_impl.h"
 #include "ash/focus_cycler.h"
 #include "ash/gpu_support.h"
@@ skipping 515 matching lines @@
 
   is_touch_hud_projection_enabled_ = enabled;
   FOR_EACH_OBSERVER(ShellObserver, observers_,
                     OnTouchHudProjectionToggled(enabled));
 }
 
 #if defined(OS_CHROMEOS)
 ash::FirstRunHelper* Shell::CreateFirstRunHelper() {
   return new ash::FirstRunHelperImpl;
 }
+
+void Shell::SetCursorCompositingEnabled(bool enabled) {
+  display_controller_->cursor_window_controller()->SetCursorCompositingEnabled(
+      enabled);
+  native_cursor_manager_->SetNativeCursorEnabled(!enabled);
+}
 #endif  // defined(OS_CHROMEOS)
 
 void Shell::DoInitialWorkspaceAnimation() {
   return GetPrimaryRootWindowController()->workspace_controller()->
       DoInitialAnimation();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, private:
 
@@ skipping 488 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, aura::client::ActivationChangeObserver implementation:
 
 void Shell::OnWindowActivated(aura::Window* gained_active,
                               aura::Window* lost_active) {
   if (gained_active)
     target_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash