[safe_browsing] Remove unused ContainsBrowseUrl() parameter.

chrome/browser/safe_browsing/database_manager.cc

Index: chrome/browser/safe_browsing/database_manager.cc
diff --git a/chrome/browser/safe_browsing/database_manager.cc b/chrome/browser/safe_browsing/database_manager.cc
index ba22281eee1772c3c0ef27b539e2e3ad0174ca37..1af1bf6dab5fe0a39c276e162785ad7ab1ca26fe 100644
--- a/chrome/browser/safe_browsing/database_manager.cc
+++ b/chrome/browser/safe_browsing/database_manager.cc
@@ -358,12 +358,11 @@ bool SafeBrowsingDatabaseManager::CheckBrowseUrl(const GURL& url,
     return false;
   }
 
-  std::string list;
   std::vector<SBPrefix> prefix_hits;
   std::vector<SBFullHashResult> full_hits;
 
   bool prefix_match =
-      database_->ContainsBrowseUrl(url, &list, &prefix_hits, &full_hits,
+      database_->ContainsBrowseUrl(url, &prefix_hits, &full_hits,
           sb_service_->protocol_manager()->last_update());
 
   UMA_HISTOGRAM_TIMES("SB2.FilterCheck", base::TimeTicks::Now() - start);