Remove virtual keyboard support.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 30de06eeb0937764231674287cc8498ea4d78e0d..810dc8913c65edd7838eb504fde065a7a8790174 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -644,11 +644,6 @@ const char kLanguageXkbAutoRepeatInterval[] =
 // "_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. { "us(dvorak)": "http://asdfg..yuiop/" }
-const char kLanguagePreferredVirtualKeyboard[] =
-    "settings.language.preferred_virtual_keyboard";
-
 // A boolean pref which determines whether spoken feedback is enabled.
 const char kSpokenFeedbackEnabled[] = "settings.accessibility";
 // A boolean pref which determines whether high conrast is enabled.
@@ -656,6 +651,7 @@ const char kHighContrastEnabled[] = "settings.a11y.high_contrast";
 // A boolean pref which determines whether screen magnifier is enabled.
 const char kScreenMagnifierEnabled[] = "settings.a11y.screen_magnifier";
 // A boolean pref which determines whether virtual keyboard is enabled.
+// TODO(hashimoto): Remove this pref.
 const char kVirtualKeyboardEnabled[] = "settings.a11y.virtual_keyboard";
 
 // A boolean pref which turns on Advanced Filesystem