Add the ability to check the CSD Whitelist asynchronously, for PhishGuard.

chrome/browser/ssl/security_state_tab_helper.cc

Index: chrome/browser/ssl/security_state_tab_helper.cc
diff --git a/chrome/browser/ssl/security_state_tab_helper.cc b/chrome/browser/ssl/security_state_tab_helper.cc
index a5c7c949fe2d169e1ea445c76a2e3ad09acb2ae2..82a9e623b5d0e535cc683632d67a6a61e023488b 100644
--- a/chrome/browser/ssl/security_state_tab_helper.cc
+++ b/chrome/browser/ssl/security_state_tab_helper.cc
@@ -179,6 +179,7 @@ SecurityStateTabHelper::GetMaliciousContentStatus() const {
       case safe_browsing::SB_THREAT_TYPE_BLACKLISTED_RESOURCE:
       case safe_browsing::SB_THREAT_TYPE_API_ABUSE:
       case safe_browsing::SB_THREAT_TYPE_SUBRESOURCE_FILTER:
+      case safe_browsing::SB_THREAT_TYPE_CSD_WHITELIST:
         // These threat types are not currently associated with
         // interstitials, and thus resources with these threat types are
         // not ever whitelisted or pending whitelisting.