Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/views/omnibox/omnibox_view_views.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 700 matching lines @@
   // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
   // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
   if (event.IsUnicodeKeyCode())
     return views::Textfield::OnKeyPressed(event);
 
   const bool shift = event.IsShiftDown();
   const bool control = event.IsControlDown();
   const bool alt = event.IsAltDown() || event.IsAltGrDown();
   switch (event.key_code()) {
     case ui::VKEY_RETURN:
-      model()->AcceptInput(alt ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
+      model()->AcceptInput(alt ? WindowOpenDisposition::NEW_FOREGROUND_TAB
+                               : WindowOpenDisposition::CURRENT_TAB,
+                           false);
       return true;
     case ui::VKEY_ESCAPE:
       return model()->OnEscapeKeyPressed();
     case ui::VKEY_CONTROL:
       model()->OnControlKeyChanged(true);
       break;
     case ui::VKEY_DELETE:
       if (shift && model()->popup_model()->IsOpen())
         model()->popup_model()->TryDeletingCurrentItem();
       break;
@@ skipping 358 matching lines @@
       paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
 
   menu_contents->AddSeparator(ui::NORMAL_SEPARATOR);
 
   // Minor note: We use IDC_ for command id here while the underlying textfield
   // is using IDS_ for all its command ids. This is because views cannot depend
   // on IDC_ for now.
   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
       IDS_EDIT_SEARCH_ENGINES);
 }