[KeyboardEvent] Use DOM |code| rather than Windows-based key code

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 c1bfca67fabcc69dd6883cd40e523300e95b8b24..d7eefcbb5e0c6f8c969b4c61d603975303a19772 100644
--- a/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
+++ b/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc
@@ -18,8 +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/ozone/layout/xkb/xkb_keyboard_code_conversion.h"
+#include "ui/events/keycodes/keyboard_code_conversion_xkb.h"
 
 namespace ui {
 
@@ -29,22 +28,6 @@ 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'))
@@ -766,6 +749,7 @@ bool XkbKeyboardLayoutEngine::Lookup(DomCode dom_code,
   *platform_keycode = xkb_keysym;
   // Classify the keysym and convert to DOM and VKEY representations.
   *dom_key = NonPrintableXkbKeySymToDomKey(xkb_keysym);
+  KeyboardCode keyboard_code = DomCodeToKeyboardCode(dom_code);
   if (*dom_key == DomKey::NONE) {
     *dom_key = CharacterToDomKey(*character);
     *key_code = AlphanumericKeyboardCode(*character);
@@ -773,7 +757,7 @@ bool XkbKeyboardLayoutEngine::Lookup(DomCode dom_code,
       *key_code = DifficultKeyboardCode(dom_code, flags, xkb_keycode, xkb_flags,
                                         xkb_keysym, *dom_key, *character);
       if (*key_code == VKEY_UNKNOWN)
-        *key_code = DomCodeToNonLocatedKeyboardCode(dom_code);
+        *key_code = LocatedToNonLocatedKeyboardCode(keyboard_code);
     }
 
     if ((flags & EF_CONTROL_DOWN) == EF_CONTROL_DOWN) {
@@ -783,11 +767,11 @@ bool XkbKeyboardLayoutEngine::Lookup(DomCode dom_code,
     }
   } else if (*dom_key == DomKey::DEAD) {
     *character = DeadXkbKeySymToCombiningCharacter(xkb_keysym);
-    *key_code = DomCodeToNonLocatedKeyboardCode(dom_code);
+    *key_code = LocatedToNonLocatedKeyboardCode(keyboard_code);
   } else {
     *key_code = NonPrintableDomKeyToKeyboardCode(*dom_key);
     if (*key_code == VKEY_UNKNOWN)
-      *key_code = DomCodeToNonLocatedKeyboardCode(dom_code);
+      *key_code = LocatedToNonLocatedKeyboardCode(keyboard_code);
   }
   return true;
 }