Set ui::KeyEvent::key_ (DOM Level 3 key) under X11.

ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc

Index: ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
diff --git a/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc b/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
index 0b4cb734650d6806c59fceba88188455c016bac9..9261731027b33190bf4fe1f6b2c2407ab515fadd 100644
--- a/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
+++ b/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
@@ -18,7 +18,7 @@
 #include "ui/events/keycodes/dom3/dom_key.h"
 #include "ui/events/keycodes/dom4/keycode_converter.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
-#include "ui/events/ozone/layout/layout_util.h"
+#include "ui/events/keycodes/keyboard_code_conversion_xkb.h"
 #include "ui/events/ozone/layout/xkb/xkb_keyboard_code_conversion.h"
 
 namespace ui {
@@ -29,22 +29,6 @@ typedef base::Callback<void(const std::string&,
                             scoped_ptr<char, base::FreeDeleter>)>
     LoadKeymapCallback;
 
-DomKey CharacterToDomKey(base::char16 character) {
-  switch (character) {
-    case 0x08:
-      return DomKey::BACKSPACE;
-    case 0x09:
-      return DomKey::TAB;
-    case 0x0A:
-    case 0x0D:
-      return DomKey::ENTER;
-    case 0x1B:
-      return DomKey::ESCAPE;
-    default:
-      return DomKey::CHARACTER;
-  }
-}
-
 KeyboardCode AlphanumericKeyboardCode(base::char16 character) {
   // Plain ASCII letters and digits map directly to VKEY values.
   if ((character >= '0') && (character <= '9'))