Revert "Automatically trigger installation of high-quality speech synthesis extension."

chrome/common/pref_names.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 "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
 namespace prefs {
@@ skipping 862 matching lines @@
 // A boolean pref recording whether user has dismissed the multiprofile
 // notification.
 const char kMultiProfileNotificationDismissed[] =
     "settings.multi_profile_notification_dismissed";
 
 // A string pref that holds string enum values of how the user should behave
 // in a multiprofile session. See ChromeOsMultiProfileUserBehavior policy
 // for more details of the valid values.
 const char kMultiProfileUserBehavior[] = "settings.multiprofile_user_behavior";
 
-// List of the set of language codes for which high quality local speech
-// synthesis has been enabled.
-const char kHighQualitySpeechSynthesisLanguages[] =
-    "settings.speech_synthesis.high_quality_languages";
-
 // A boolean preference indicating whether user has seen first-run tutorial
 // already.
 const char kFirstRunTutorialShown[] = "settings.first_run_tutorial_shown";
 
 // Indicates the amount of time for which a user authenticated via SAML can use
 // offline authentication against a cached password before being forced to go
 // through online authentication against GAIA again. The time is expressed in
 // seconds. A value of -1 indicates no limit, allowing the user to use offline
 // authentication indefinitely. The limit is in effect only if GAIA redirected
 // the user to a SAML IdP during the last online authentication.
@@ skipping 1749 matching lines @@
 
 // The number of seconds since epoch that the OS password was last changed.
 const char kOsPasswordLastChanged[] =
     "password_manager.os_password_last_changed";
 #endif
 
 // Whether DNS Quick Check is disabled in proxy resolution.
 const char kQuickCheckEnabled[] = "proxy.quick_check_enabled";
 
 }  // namespace prefs