Re-lands 58186:

app/keyboard_code_conversion_win.cc

Index: app/keyboard_code_conversion_win.cc
diff --git a/app/keyboard_code_conversion_win.cc b/app/keyboard_code_conversion_win.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2a7da8fbf6d9c420b750c51e0a919f274b1fb084
--- /dev/null
+++ b/app/keyboard_code_conversion_win.cc
@@ -0,0 +1,17 @@
+// Copyright (c) 2010 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 "app/keyboard_code_conversion_win.h"
+
+namespace app {
+
+WORD WindowsKeyCodeForKeyboardCode(app::KeyboardCode keycode) {
+  return static_cast<WORD>(keycode);
+}
+
+app::KeyboardCode KeyboardCodeForWindowsKeyCode(WORD keycode) {
+  return static_cast<app::KeyboardCode>(keycode);
+}
+
+}  // namespace app