Fix CapsLock remapping.

ui/events/ozone/layout/layout_util.cc

 // Copyright 2014 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/events/ozone/layout/layout_util.h"
 
 #include <algorithm>
 
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/dom3/dom_code.h"
@@ skipping 528 matching lines @@
       return false;
   }
 }
 
 int ModifierDomKeyToEventFlag(DomKey key) {
   switch (key) {
     case DomKey::ALT:
       return EF_ALT_DOWN;
     case DomKey::ALT_GRAPH:
       return EF_ALTGR_DOWN;
+    // ChromeOS uses F16 to represent CapsLock before the rewriting stage,
+    // based on the historical X11 implementation.
+    // TODO post-X11: Switch to use CapsLock uniformly.
+    case DomKey::F16:
     case DomKey::CAPS_LOCK:
       return EF_CAPS_LOCK_DOWN;
     case DomKey::CONTROL:
       return EF_CONTROL_DOWN;
     case DomKey::HYPER:
       return EF_MOD3_DOWN;
     case DomKey::META:
       return EF_ALT_DOWN;
     case DomKey::OS:
       return EF_COMMAND_DOWN;
     case DomKey::SHIFT:
       return EF_SHIFT_DOWN;
     case DomKey::SUPER:
       return EF_MOD3_DOWN;
     default:
       return EF_NONE;
   }
   // Not represented:
   //   DomKey::ACCEL
   //   DomKey::FN
   //   DomKey::FN_LOCK
   //   DomKey::NUM_LOCK
   //   DomKey::SCROLL_LOCK
   //   DomKey::SYMBOL
   //   DomKey::SYMBOL_LOCK
 }
 
 }  // namespace ui