Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/ozone/layout/layout_util.cc

Index: ui/events/ozone/layout/layout_util.cc
diff --git a/ui/events/ozone/layout/layout_util.cc b/ui/events/ozone/layout/layout_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6864d4a0008fb3ddc7684ed1ca9a9c790e8700a1
--- /dev/null
+++ b/ui/events/ozone/layout/layout_util.cc
@@ -0,0 +1,48 @@
+// 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 "ui/events/event_constants.h"
+#include "ui/events/keycodes/dom/dom_key.h"
+
+namespace ui {
+
+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::META:
+      return EF_ALT_DOWN;
+    case DomKey::OS:
+      return EF_COMMAND_DOWN;
+    case DomKey::SHIFT:
+      return EF_SHIFT_DOWN;
+    case DomKey::SHIFT_LEVEL5:
+      return EF_MOD3_DOWN;
+    default:
+      return EF_NONE;
+  }
+  // Not represented:
+  //   DomKey::ACCEL
+  //   DomKey::FN
+  //   DomKey::FN_LOCK
+  //   DomKey::HYPER
+  //   DomKey::NUM_LOCK
+  //   DomKey::SCROLL_LOCK
+  //   DomKey::SUPER
+  //   DomKey::SYMBOL_LOCK
+}
+
+}  // namespace ui