Test interstitials shouldn't use null SSLCertReporters

chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc

Index: chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
diff --git a/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc b/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
index ad459dd348a70f0c577b9521b0bc231499e2df92..d3879763d5dce6a654c58ab6e958419e136c59b8 100644
--- a/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
+++ b/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
@@ -320,6 +320,13 @@ IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageTest, CertReportingOptOut) {
       certificate_reporting_test_utils::EXTENDED_REPORTING_DO_NOT_OPT_IN);
 }
 
+class FakeSSLCertReporter : public SSLCertReporter {
+ public:
+  // SSLCertReporter methods:
+  void ReportInvalidCertificateChain(
+      const std::string& serialized_report) override {}
+};
+
 class CaptivePortalBlockingPageIDNTest : public SecurityInterstitialIDNTest {
  protected:
   // SecurityInterstitialIDNTest implementation
@@ -330,7 +337,9 @@ class CaptivePortalBlockingPageIDNTest : public SecurityInterstitialIDNTest {
     // Blocking page is owned by the interstitial.
     CaptivePortalBlockingPage* blocking_page =
         new CaptivePortalBlockingPageForTesting(
-            contents, GURL(kBrokenSSL), request_url, nullptr, empty_ssl_info,
+            contents, GURL(kBrokenSSL), request_url,
+            std::unique_ptr<SSLCertReporter>(new FakeSSLCertReporter()),
+            empty_ssl_info,
             base::Callback<void(content::CertificateRequestResultType)>(),
             false, "");
     return blocking_page;