Add custom interstitial for captive portals.

chrome/browser/interstitials/security_interstitial_page.h

Index: chrome/browser/interstitials/security_interstitial_page.h
diff --git a/chrome/browser/interstitials/security_interstitial_page.h b/chrome/browser/interstitials/security_interstitial_page.h
index 2a9a9d2dbb9050600952dfb0e76086044e958ed9..965154a1783f6cfe4cce83cecd985061dbc407d8 100644
--- a/chrome/browser/interstitials/security_interstitial_page.h
+++ b/chrome/browser/interstitials/security_interstitial_page.h
@@ -1,4 +1,4 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -7,6 +7,7 @@
 
 #include "base/strings/string16.h"
 #include "content/public/browser/interstitial_page_delegate.h"
+#include "grit/browser_resources.h"
 #include "url/gurl.h"
 
 namespace base {
@@ -22,7 +23,7 @@ class SecurityInterstitialPage : public content::InterstitialPageDelegate {
  public:
   SecurityInterstitialPage(content::WebContents* web_contents,
                            const GURL& url);
-  virtual ~SecurityInterstitialPage();
+  virtual ~SecurityInterstitialPage() {}
 
   // Creates an interstitial and shows it.
   virtual void Show();
@@ -42,10 +43,10 @@ class SecurityInterstitialPage : public content::InterstitialPageDelegate {
       base::DictionaryValue* load_time_data) = 0;
 
   // InterstitialPageDelegate method:
-  std::string GetHTMLContents() override;
+  virtual std::string GetHTMLContents() override;
 
   // Returns the formatted host name for the request url.
-  base::string16 GetFormattedHostName() const;
+  base::string16 GetFormattedHostName();
 
   content::InterstitialPage* interstitial_page() const;
   content::WebContents* web_contents() const;
@@ -54,13 +55,11 @@ class SecurityInterstitialPage : public content::InterstitialPageDelegate {
  private:
   content::WebContents* web_contents_;
   const GURL request_url_;
-  // Once shown, |interstitial_page| takes ownership of this
+  // Once shown, interstitial_page takes ownership of this
   // SecurityInterstitialPage instance.
   content::InterstitialPage* interstitial_page_;
   // Whether the interstitial should create a view.
   bool create_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(SecurityInterstitialPage);
 };
 
 #endif  // CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_PAGE_H_