Fix privacy whitepaper link

chrome/browser/ssl/captive_portal_blocking_page.cc

Index: chrome/browser/ssl/captive_portal_blocking_page.cc
diff --git a/chrome/browser/ssl/captive_portal_blocking_page.cc b/chrome/browser/ssl/captive_portal_blocking_page.cc
index d0c3cd2036fadc68463c34c0a806523680e1fc72..206fd81fbe95279b6cbb0263b14c9996e0eca2b2 100644
--- a/chrome/browser/ssl/captive_portal_blocking_page.cc
+++ b/chrome/browser/ssl/captive_portal_blocking_page.cc
@@ -233,6 +233,9 @@ void CaptivePortalBlockingPage::CommandReceived(const std::string& command) {
     case security_interstitials::CMD_OPEN_REPORTING_PRIVACY:
       controller()->OpenExtendedReportingPrivacyPolicy();
       break;
+    case security_interstitials::CMD_OPEN_WHITEPAPER:
+      controller()->OpenExtendedReportingWhitepaper();
+      break;
     case security_interstitials::CMD_ERROR:
     case security_interstitials::CMD_TEXT_FOUND:
     case security_interstitials::CMD_TEXT_NOT_FOUND: