Use std::tie() for operator< in extensions/

extensions/common/permissions/socket_permission_entry.cc

 // Copyright 2014 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 "extensions/common/permissions/socket_permission_entry.h"
 
 #include <cstdlib>
 #include <sstream>
+#include <tuple>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/socket_permission.h"
 #include "url/url_canon.h"
@@ skipping 17 matching lines @@
 
 namespace extensions {
 
 SocketPermissionEntry::SocketPermissionEntry()
     : pattern_(SocketPermissionRequest::NONE, std::string(), kInvalidPort),
       match_subdomains_(false) {}
 
 SocketPermissionEntry::~SocketPermissionEntry() {}
 
 bool SocketPermissionEntry::operator<(const SocketPermissionEntry& rhs) const {
-  if (pattern_.type < rhs.pattern_.type)
-    return true;
-  if (pattern_.type > rhs.pattern_.type)
-    return false;
-
-  if (pattern_.host < rhs.pattern_.host)
-    return true;
-  if (pattern_.host > rhs.pattern_.host)
-    return false;
-
-  if (match_subdomains_ < rhs.match_subdomains_)
-    return true;
-  if (match_subdomains_ > rhs.match_subdomains_)
-    return false;
-
-  if (pattern_.port < rhs.pattern_.port)
-    return true;
-  return false;
+  return std::tie(pattern_.type, pattern_.host, match_subdomains_,
+                  pattern_.port) <
+         std::tie(rhs.pattern_.type, rhs.pattern_.host, rhs.match_subdomains_,
+                  rhs.pattern_.port);
 }
 
 bool SocketPermissionEntry::operator==(const SocketPermissionEntry& rhs) const {
   return (pattern_.type == rhs.pattern_.type) &&
          (pattern_.host == rhs.pattern_.host) &&
          (match_subdomains_ == rhs.match_subdomains_) &&
          (pattern_.port == rhs.pattern_.port);
 }
 
 bool SocketPermissionEntry::Check(
@@ skipping 143 matching lines @@
 
   if (pattern_.port == kWildcardPortNumber)
     result.append(1, kColon).append(kWildcard);
   else
     result.append(1, kColon).append(base::UintToString(pattern_.port));
 
   return result;
 }
 
 }  // namespace extensions