Add custom interstitial for captive portals.

chrome/browser/interstitials/security_interstitial_page.h

 // Copyright (c) 2014 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.
 
 #ifndef CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_PAGE_H_
 #define CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_PAGE_H_
 
 #include "base/strings/string16.h"
 #include "content/public/browser/interstitial_page_delegate.h"
 #include "grit/browser_resources.h"
 #include "url/gurl.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class InterstitialPage;
 class WebContents;
 }
 
 class SecurityInterstitialPage : public content::InterstitialPageDelegate {
  public:
   enum Type {
     SAFEBROWSING,
-    SSL
+    SSL,
+    CAPTIVE_PORTAL
   };
   SecurityInterstitialPage(content::WebContents* web_contents,
                            const GURL& url);
   virtual ~SecurityInterstitialPage() {}
 
   // Creates an interstitial and shows it.
   virtual void Show();
   // Returns interstitial type for testing.
   virtual Type GetTypeForTesting() const = 0;
   // Prevents creating the actual interstitial view for testing.
@@ skipping 20 matching lines @@
   content::WebContents* web_contents_;
   const GURL request_url_;
   // Once shown, interstitial_page takes ownership of this
   // SecurityInterstitialPage instance.
   content::InterstitialPage* interstitial_page_;
   // Whether the interstitial should create a view.
   bool create_view_;
 };
 
 #endif  // CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_PAGE_H_