Add pinned cert interstitial to chrome://interstitials

chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc

 // Copyright 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.
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/devtools/devtools_window_testing.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
@@ skipping 34 matching lines @@
       GURL("chrome://interstitials/--invalid--"),
       "Interstitials");
 }
 
 IN_PROC_BROWSER_TEST_F(InterstitialUITest, SSLInterstitial) {
   TestInterstitial(
       GURL("chrome://interstitials/ssl"),
       "Privacy error");
 }
 
+IN_PROC_BROWSER_TEST_F(InterstitialUITest, PinnedCertInterstitial) {
+  TestInterstitial(GURL("chrome://interstitials/ssl?type=hpkp_failure"),
+                   "Privacy error");
+}
+
 IN_PROC_BROWSER_TEST_F(InterstitialUITest, MalwareInterstitial) {
   TestInterstitial(
       GURL("chrome://interstitials/safebrowsing?type=malware"),
       "Security error");
 }
 
 IN_PROC_BROWSER_TEST_F(InterstitialUITest, PhishingInterstitial) {
   TestInterstitial(
       GURL("chrome://interstitials/safebrowsing?type=phishing"),
       "Security error");
@@ skipping 42 matching lines @@
 
   // Duplicate the tab and close it.
   chrome::DuplicateTab(browser());
   EXPECT_NE(current_tab, browser()->tab_strip_model()->active_index());
   chrome::CloseTab(browser());
   EXPECT_EQ(current_tab, browser()->tab_strip_model()->active_index());
 
   // Reloading the page shouldn't cause a crash.
   chrome::Reload(browser(), WindowOpenDisposition::CURRENT_TAB);
 }