Palette tool laser prototype.

chrome/browser/ui/ash/palette_delegate_chromeos.cc

 // Copyright 2016 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 "chrome/browser/ui/ash/palette_delegate_chromeos.h"
 
+#include "ash/shell.h"
+
 namespace chromeos {
 
 PaletteDelegateChromeOS::PaletteDelegateChromeOS() {}
 
 PaletteDelegateChromeOS::~PaletteDelegateChromeOS() {}
 
+void PaletteDelegateChromeOS::OnLaserPointerEnabled() {
+  // We lock the cursor after we hide it because compound_event_filter.cc will
+  // attempt to call ShowCursor every time it recieves a mouse event.
+  ash::Shell::GetInstance()->cursor_manager()->HideCursor();
+  ash::Shell::GetInstance()->cursor_manager()->LockCursor();
+}
+
+void PaletteDelegateChromeOS::OnLaserPointerDisabled() {
+  ash::Shell::GetInstance()->cursor_manager()->UnlockCursor();
+  ash::Shell::GetInstance()->cursor_manager()->ShowCursor();
+}
 }  // namespace chromeos