Move accessibility_util.* from chrome/browser/chromeos to chrome/browser/chromeos/accessibility

chrome/browser/chromeos/accessibility_util.h

-// Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_UTIL_H_
-#define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_UTIL_H_
-#pragma once
-
-class WebUI;
-
-namespace chromeos {
-namespace accessibility {
-
-// Enable or disable accessibility. Enabling accessibility installs the
-// ChromeVox component extension.  If this is being called in a login/oobe
-// login screen, pass the WebUI object in login_web_ui so that ChromeVox
-// can be injected directly into that screen, otherwise it should be NULL.
-void EnableAccessibility(bool enabled, WebUI* login_web_ui);
-
-// Toggles whether Chrome OS accessibility is on or off. See docs for
-// EnableAccessibility, above.
-void ToggleAccessibility(WebUI* login_web_ui);
-
-// Speaks the specified string.
-void Speak(const char* speak_str);
-
-// Returns true if Accessibility is enabled, or false if not.
-bool IsAccessibilityEnabled();
-
-}  // namespace accessibility
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_UTIL_H_