Add custom interstitial for captive portals.

chrome/browser/ssl/captive_portal_blocking_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_SSL_CAPTIVE_PORTAL_BLOCKING_PAGE_H_
+#define CHROME_BROWSER_SSL_CAPTIVE_PORTAL_BLOCKING_PAGE_H_
+
+#include <string>
+#include "content/public/browser/interstitial_page_delegate.h"
+#include "url/gurl.h"
+
+namespace content{
+class InterstitialPage;
+class WebContents;
+}
+
+// This class is responsible for showing/hiding the interstitial page that is
+// shown when a captive portal and an SSL error is detected.
+// It deletes itself when the interstitial page is closed..
+//
+// This class should only be used on the UI thread because its implementation
+// uses captive_portal::CaptivePortalService which can only be accessed on the
+// UI thread.
+class CaptivePortalBlockingPage : public content::InterstitialPageDelegate {
+ public:
+  CaptivePortalBlockingPage(content::WebContents* web_contents,
+                            const GURL& request_url);
+  virtual ~CaptivePortalBlockingPage();
+
+ protected:
+  // InterstitialPageDelegate implementation.
+  virtual std::string GetHTMLContents() OVERRIDE;
+  virtual void CommandReceived(const std::string& command) OVERRIDE;
+
+ private:
+  content::WebContents* web_contents_;
+  // The URL which had the SSL error.
+  GURL request_url_;
+  // The interstitial page owns us.
+  content::InterstitialPage* interstitial_page_;
+
+  DISALLOW_COPY_AND_ASSIGN(CaptivePortalBlockingPage);
+};
+
+#endif  // CHROME_BROWSER_SSL_CAPTIVE_PORTAL_BLOCKING_PAGE_H_