Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/singleton_tabs.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/singleton_tabs.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_navigator.h"
@@ skipping 36 matching lines @@
   DCHECK(browser);
   NavigateParams local_params(params);
   content::WebContents* contents =
       browser->tab_strip_model()->GetActiveWebContents();
   if (contents) {
     const GURL& contents_url = contents->GetURL();
     if ((contents_url == GURL(kChromeUINewTabURL) ||
          search::IsInstantNTP(contents) ||
          contents_url == GURL(url::kAboutBlankURL)) &&
         GetIndexOfSingletonTab(&local_params) < 0) {
-      local_params.disposition = CURRENT_TAB;
+      local_params.disposition = WindowOpenDisposition::CURRENT_TAB;
     }
   }
 
   Navigate(&local_params);
 }
 
 NavigateParams GetSingletonTabNavigateParams(Browser* browser,
                                              const GURL& url) {
   NavigateParams params(browser, url, ui::PAGE_TRANSITION_AUTO_BOOKMARK);
-  params.disposition = SINGLETON_TAB;
+  params.disposition = WindowOpenDisposition::SINGLETON_TAB;
   params.window_action = NavigateParams::SHOW_WINDOW;
   params.user_gesture = true;
   params.tabstrip_add_types |= TabStripModel::ADD_INHERIT_OPENER;
   return params;
 }
 
 // Returns the index of an existing singleton tab in |params->browser| matching
 // the URL specified in |params|.
 int GetIndexOfSingletonTab(NavigateParams* params) {
-  if (params->disposition != SINGLETON_TAB)
+  if (params->disposition != WindowOpenDisposition::SINGLETON_TAB)
     return -1;
 
   // In case the URL was rewritten by the BrowserURLHandler we need to ensure
   // that we do not open another URL that will get redirected to the rewritten
   // URL.
   GURL rewritten_url(params->url);
   bool reverse_on_redirect = false;
   content::BrowserURLHandler::GetInstance()->RewriteURLIfNecessary(
       &rewritten_url,
       params->browser->profile(),
@@ skipping 36 matching lines @@
                                     replacements)) {
       params->target_contents = tab;
       return tab_index;
     }
   }
 
   return -1;
 }
 
 }  // namespace chrome