Move SecurityInterstitialPage into component

chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc

 // Copyright 2015 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/ssl/captive_portal_blocking_page.h"
 
 #include <string>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 305 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageTest, CertReportingOptOut) {
   TestCertReporting(
       certificate_reporting_test_utils::EXTENDED_REPORTING_DO_NOT_OPT_IN);
 }
 
 class CaptivePortalBlockingPageIDNTest : public SecurityInterstitialIDNTest {
  protected:
   // SecurityInterstitialIDNTest implementation
-  SecurityInterstitialPage* CreateInterstitial(
+  security_interstitials::SecurityInterstitialPage* CreateInterstitial(
       content::WebContents* contents,
       const GURL& request_url) const override {
     net::SSLInfo empty_ssl_info;
     // Blocking page is owned by the interstitial.
     CaptivePortalBlockingPage* blocking_page =
         new CaptivePortalBlockingPageForTesting(
             contents, GURL(kBrokenSSL), request_url, nullptr, empty_ssl_info,
             base::Callback<void(content::CertificateRequestResultType)>(),
             false, "");
     return blocking_page;
   }
 };
 
 // Test that an IDN login domain is decoded properly.
 IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageIDNTest,
                        ShowLoginIDNIfPortalRedirectsDetectionURL) {
   EXPECT_TRUE(VerifyIDNDecoded());
 }