Coverity: fix wrong assignment in swap in TranslateInfoBarDelegate2::GetAfterTranslateStrings.

chrome/browser/translate/translate_infobar_delegate2.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 <algorithm>
+
 #include "chrome/browser/translate/translate_infobar_delegate2.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/translate/translate_infobar_view.h"
 #include "chrome/browser/translate/translate_manager2.h"
 #include "grit/generated_resources.h"
@@ skipping 261 matching lines @@
   DCHECK(swap_languages);
 
   std::vector<size_t> offsets;
   string16 text =
       l10n_util::GetStringFUTF16(IDS_TRANSLATE_INFOBAR_AFTER_MESSAGE,
                                  string16(), string16(), &offsets);
   DCHECK(offsets.size() == 2U);
 
   if (offsets[0] > offsets[1]) {
     // Target language comes before source.
-    int tmp = offsets[0];
-    offsets[0] = offsets[0];
-    offsets[1] = tmp;
+    std::swap(offsets[0], offsets[1]);
     *swap_languages = true;
   } else {
     *swap_languages = false;
   }
 
   strings->push_back(text.substr(0, offsets[0]));
   strings->push_back(text.substr(offsets[0], offsets[1]));
   strings->push_back(text.substr(offsets[1]));
 }
 
 #if !defined(OS_WIN) && !defined(OS_CHROMEOS)
 // Necessary so we link OK on Mac and Linux while the new translate infobars
 // are being ported to these platforms.
 InfoBar* TranslateInfoBarDelegate2::CreateInfoBar() {
   return NULL;
 }
 #endif