Coverity: Pass values by reference.

chrome/browser/net/url_info.cc

 // Copyright (c) 2010 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/net/url_info.h"
 
 #include <math.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 241 matching lines @@
   int print_hours = minutes/60;
   if (print_hours)
     base::StringAppendF(&result, "%.2d:",  print_hours);
   if (print_hours || print_minutes)
     base::StringAppendF(&result, "%2.2d:",  print_minutes);
   base::StringAppendF(&result, "%2.2d",  print_seconds);
   return result;
 }
 
 // static
-void UrlInfo::GetHtmlTable(const UrlInfoTable host_infos,
-                               const char* description,
-                               const bool brief,
-                               std::string* output) {
+void UrlInfo::GetHtmlTable(const UrlInfoTable& host_infos,
+                           const char* description,
+                           bool brief,
+                           std::string* output) {
   if (0 == host_infos.size())
     return;
   output->append(description);
   base::StringAppendF(output, "%" PRIuS " %s", host_infos.size(),
                       (1 == host_infos.size()) ? "hostname" : "hostnames");
 
   if (brief) {
     output->append("<br><br>");
     return;
   }
@@ skipping 63 matching lines @@
 
     case LEARNED_REFERAL_MOTIVATED:
       return RemoveJs(referring_url_.spec());
 
     default:
       return "";
   }
 }
 
 }  // namespace chrome_browser_net