Move chromeos::EventRewriter to //ui/chromeos/events

ui/chromeos/events/pref_names.cc

+// Copyright 2017 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 "ui/chromeos/events/pref_names.h"
+
+namespace prefs {
+
+// *************** PROFILE PREFS ***************
+// These are attached to the user profile
+
+// Integer prefs which determine how we remap modifier keys (e.g. swap Alt and
+// Control.) Possible values for these prefs are 0-6. See ModifierKey enum in
+// src/chrome/browser/chromeos/input_method/xkeyboard.h
+const char kLanguageRemapSearchKeyTo[] =
+    // Note: we no longer use XKB for remapping these keys, but we can't change
+    // the pref names since the names are already synced with the cloud.
+    "settings.language.xkb_remap_search_key_to";
+const char kLanguageRemapControlKeyTo[] =
+    "settings.language.xkb_remap_control_key_to";
+const char kLanguageRemapAltKeyTo[] = "settings.language.xkb_remap_alt_key_to";
+const char kLanguageRemapCapsLockKeyTo[] =
+    "settings.language.remap_caps_lock_key_to";
+const char kLanguageRemapEscapeKeyTo[] =
+    "settings.language.remap_escape_key_to";
+const char kLanguageRemapBackspaceKeyTo[] =
+    "settings.language.remap_backspace_key_to";
+const char kLanguageRemapDiamondKeyTo[] =
+    "settings.language.remap_diamond_key_to";
+
+}  // namespace prefs