Convert WindowOpenDisposition to an enum class.

chrome/browser/extensions/api/omnibox/omnibox_api.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/extensions/api/omnibox/omnibox_api.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 134 matching lines @@
 
   const Extension* extension =
       ExtensionRegistry::Get(profile)->enabled_extensions().GetByID(
           extension_id);
   CHECK(extension);
   extensions::TabHelper::FromWebContents(web_contents)->
       active_tab_permission_granter()->GrantIfRequested(extension);
 
   std::unique_ptr<base::ListValue> args(new base::ListValue());
   args->Set(0, new base::StringValue(input));
-  if (disposition == NEW_FOREGROUND_TAB)
+  if (disposition == WindowOpenDisposition::NEW_FOREGROUND_TAB)
     args->Set(1, new base::StringValue(kForegroundTabDisposition));
-  else if (disposition == NEW_BACKGROUND_TAB)
+  else if (disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB)
     args->Set(1, new base::StringValue(kBackgroundTabDisposition));
   else
     args->Set(1, new base::StringValue(kCurrentTabDisposition));
 
   std::unique_ptr<Event> event = base::MakeUnique<Event>(
       events::OMNIBOX_ON_INPUT_ENTERED, omnibox::OnInputEntered::kEventName,
       std::move(args));
   event->restrict_to_browser_context = profile;
   EventRouter::Get(profile)
       ->DispatchEventToExtension(extension_id, std::move(event));
@@ skipping 225 matching lines @@
     for (size_t i = 0; i < description_styles.size(); ++i) {
       if (description_styles[i].offset > placeholder)
         description_styles[i].offset += replacement.length() - 2;
     }
   }
 
   match->contents.assign(description);
 }
 
 }  // namespace extensions