[HttpCache] LOAD_ONLY_FROM_CACHE should not imply LOAD_PREFERRING_CACHE

chrome/browser/safe_browsing/threat_details_cache.cc

Index: chrome/browser/safe_browsing/threat_details_cache.cc
diff --git a/chrome/browser/safe_browsing/threat_details_cache.cc b/chrome/browser/safe_browsing/threat_details_cache.cc
index 15c2e8dcd1e8446c2eda7f5868f7c575dd83e221..066e06a332099be0f351cb17e7899ad338e2fbee 100644
--- a/chrome/browser/safe_browsing/threat_details_cache.cc
+++ b/chrome/browser/safe_browsing/threat_details_cache.cc
@@ -89,6 +89,7 @@ void ThreatDetailsCacheCollector::OpenEntry() {
   current_fetch_->SetRequestContext(request_context_getter_.get());
   // Only from cache, and don't save cookies.
   current_fetch_->SetLoadFlags(net::LOAD_ONLY_FROM_CACHE |
+                               net::LOAD_SKIP_CACHE_VALIDATION |
                                net::LOAD_DO_NOT_SAVE_COOKIES);
   current_fetch_->SetAutomaticallyRetryOn5xx(false);  // No retries.
   current_fetch_->Start();  // OnURLFetchComplete will be called when done.