Convert WindowOpenDisposition to an enum class.

chrome/browser/background/background_mode_manager.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/background/background_mode_manager.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <string>
 #include <utility>
@@ skipping 382 matching lines @@
   // profile should be added to the status icon if one currently exists.
   if (in_background_mode_ && status_icon_)
     UpdateStatusTrayIconContextMenu();
 }
 
 // static
 void BackgroundModeManager::LaunchBackgroundApplication(
     Profile* profile,
     const Extension* extension) {
   OpenApplication(CreateAppLaunchParamsUserContainer(
-      profile, extension, NEW_FOREGROUND_TAB, extensions::SOURCE_BACKGROUND));
+      profile, extension, WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      extensions::SOURCE_BACKGROUND));
 }
 
 // static
 Browser* BackgroundModeManager::GetBrowserWindowForProfile(Profile* profile) {
   Browser* browser = chrome::FindLastActiveWithProfile(profile);
   return browser ? browser : chrome::OpenEmptyWindow(profile);
 }
 
 bool BackgroundModeManager::IsBackgroundModeActive() {
   return in_background_mode_;
@@ skipping 632 matching lines @@
     }
   }
   return profile_it;
 }
 
 bool BackgroundModeManager::IsBackgroundModePrefEnabled() const {
   PrefService* service = g_browser_process->local_state();
   DCHECK(service);
   return service->GetBoolean(prefs::kBackgroundModeEnabled);
 }