Make the cursor have separate mode for disabled mouse events and invisible.

ash/wm/session_state_controller_impl.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/wm/session_state_controller_impl.h"
 
 #include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_window_ids.h"
@@ skipping 34 matching lines @@
   system_is_locked_ = (status == user::LOGGED_IN_LOCKED);
 }
 
 void SessionStateControllerImpl::OnAppTerminating() {
   // If we hear that Chrome is exiting but didn't request it ourselves, all we
   // can really hope for is that we'll have time to clear the screen.
   if (!shutting_down_) {
     shutting_down_ = true;
     Shell* shell = ash::Shell::GetInstance();
     shell->env_filter()->set_cursor_hidden_by_filter(false);
-    shell->cursor_manager()->ShowCursor(false);
+    shell->cursor_manager()->DisableMouseEvents();
     animator_->StartAnimation(
         internal::SessionStateAnimator::kAllContainersMask,
         internal::SessionStateAnimator::ANIMATION_HIDE_IMMEDIATELY,
         internal::SessionStateAnimator::ANIMATION_SPEED_IMMEDIATE);
   }
 }
 
 void SessionStateControllerImpl::OnLockStateChanged(bool locked) {
   if (shutting_down_ || (system_is_locked_ == locked))
     return;
@@ skipping 146 matching lines @@
   if (!shutting_down_)
     RequestShutdownImpl();
 }
 
 void SessionStateControllerImpl::RequestShutdownImpl() {
   DCHECK(!shutting_down_);
   shutting_down_ = true;
 
   Shell* shell = ash::Shell::GetInstance();
   shell->env_filter()->set_cursor_hidden_by_filter(false);
-  shell->cursor_manager()->ShowCursor(false);
+  shell->cursor_manager()->DisableMouseEvents();
 
   if (login_status_ != user::LOGGED_IN_NONE) {
     // Hide the other containers before starting the animation.
     // ANIMATION_FULL_CLOSE will make the screen locker windows partially
     // transparent, and we don't want the other windows to show through.
     animator_->StartAnimation(
         internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS |
         internal::SessionStateAnimator::LAUNCHER,
         internal::SessionStateAnimator::ANIMATION_HIDE_IMMEDIATELY,
         internal::SessionStateAnimator::ANIMATION_SPEED_IMMEDIATE);
@@ skipping 99 matching lines @@
 void SessionStateControllerImpl::OnLockScreenHide(base::Closure& callback) {
   callback.Run();
 }
 
 void SessionStateControllerImpl::SetLockScreenDisplayedCallback(
     base::Closure& callback) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace ash