[safe_browsing] Remove unused ContainsBrowseUrl() parameter.

chrome/browser/safe_browsing/database_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/safe_browsing/database_manager.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 340 matching lines @@
   if (!MakeDatabaseAvailable()) {
     QueuedCheck queued_check(safe_browsing_util::MALWARE,  // or PHISH
                              client,
                              url,
                              expected_threats,
                              start);
     queued_checks_.push_back(queued_check);
     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);
 
   if (!prefix_match)
     return true;  // URL is okay.
 
   // Needs to be asynchronous, since we could be in the constructor of a
   // ResourceDispatcherHost event handler which can't pause there.
   SafeBrowsingCheck* check = new SafeBrowsingCheck(std::vector<GURL>(1, url),
@@ skipping 638 matching lines @@
       new base::WeakPtrFactory<SafeBrowsingDatabaseManager>(this));
   checks_.insert(check);
 
   safe_browsing_thread_->message_loop()->PostTask(FROM_HERE, task);
 
   base::MessageLoop::current()->PostDelayedTask(FROM_HERE,
       base::Bind(&SafeBrowsingDatabaseManager::TimeoutCallback,
                  check->timeout_factory_->GetWeakPtr(), check),
       check_timeout_);
 }