Add pref entry for virtual keyboard

chrome/common/pref_names.cc

 // 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.
 
 #include "chrome/common/pref_names.h"
 
 namespace prefs {
 
 // *************** PROFILE PREFS ***************
 // These are attached to the user profile
@@ skipping 456 matching lines @@
     "settings.language.xkb_auto_repeat_enabled_r2";
 // A integer pref which determines key repeat delay (in ms).
 const char kLanguageXkbAutoRepeatDelay[] =
     "settings.language.xkb_auto_repeat_delay_r2";
 // A integer pref which determines key repeat interval (in ms).
 const char kLanguageXkbAutoRepeatInterval[] =
     "settings.language.xkb_auto_repeat_interval_r2";
 // "_r2" suffixes are added to the three prefs above when we change the
 // preferences not user-configurable, not to sync them with cloud.
 
+// A dictionary pref which determines a preferred virtual keyboard per layout.
+// e.g. { "xkb:us::eng": "http://asdfg..yuiop/" }
+const char kLanguagePreferredVirtualKeyboard[] =
+    "settings.language.preferred_virtual_keyboard";
+
 // A boolean pref which determines whether accessibility is enabled.
 const char kAccessibilityEnabled[] = "settings.accessibility";
 
 // A boolean pref which turns on Advanced Filesystem
 // (USB support, SD card, etc).
 const char kLabsAdvancedFilesystemEnabled[] =
     "settings.labs.advanced_filesystem";
 
 // A boolean pref which turns on the mediaplayer.
 const char kLabsMediaplayerEnabled[] = "settings.labs.mediaplayer";
@@ skipping 949 matching lines @@
 // Whether user-specified handlers for protocols and content types can be
 // specified.
 const char kCustomHandlersEnabled[] = "custom_handlers.enabled";
 
 // Integers that specify the policy refresh rate for device- and user-policy in
 // milliseconds. Not all values are meaningful, so it is clamped to a sane range
 // by the cloud policy subsystem.
 const char kDevicePolicyRefreshRate[] = "policy.device_refresh_rate";
 const char kUserPolicyRefreshRate[] = "policy.user_refresh_rate";
 }  // namespace prefs