Add persisted preference for projection touch HUD

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 864 matching lines @@
 // of remote data is tainted (e.g. shared scripts), and future navigations
 // show a warning indicating that the organization may track the browsing
 // session.
 const char kUsedPolicyCertificatesOnce[] = "used_policy_certificates_once";
 
 // Indicates whether the remote attestation is enabled for the user.
 const char kAttestationEnabled[] = "attestation.enabled";
 // The list of extensions allowed to use the platformKeysPrivate API for
 // remote attestation.
 const char kAttestationExtensionWhitelist[] = "attestation.extension_whitelist";
+
+// A boolean pref indicating whether the projection touch HUD is enabled or not.
+const char kTouchHudProjectionEnabled[] = "touch_hud.projection_enabled";
 #endif  // defined(OS_CHROMEOS)
 
 // The disabled messages in IPC logging.
 const char kIpcDisabledMessages[] = "ipc_log_disabled_messages";
 
 // A boolean pref set to true if a Home button to open the Home pages should be
 // visible on the toolbar.
 const char kShowHomeButton[] = "browser.show_home_button";
 
 // A string value which saves short list of recently user selected encodings
@@ skipping 1599 matching lines @@
 
 // How often the bubble has been shown.
 extern const char kModuleConflictBubbleShown[] = "module_conflict.bubble_shown";
 
 // A string pref for storing the salt used to compute the pepper device ID.
 const char kDRMSalt[] = "settings.privacy.drm_salt";
 // A boolean pref that enables the (private) pepper GetDeviceID() call.
 const char kEnableDRM[] = "settings.privacy.drm_enabled";
 
 }  // namespace prefs