Fix cases that initialized StringTokenizer with a temporary.

chrome/browser/shell_integration_linux.cc

 // Copyright (c) 2006-2009 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/shell_integration.h"
 
 #include <fcntl.h>
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ skipping 36 matching lines @@
 
 bool GetDesktopShortcutTemplate(std::string* output) {
   std::vector<std::string> search_paths;
 
   const char* xdg_data_home = getenv("XDG_DATA_HOME");
   if (xdg_data_home)
     search_paths.push_back(xdg_data_home);
 
   const char* xdg_data_dirs = getenv("XDG_DATA_DIRS");
   if (xdg_data_dirs) {
-    StringTokenizer tokenizer(xdg_data_dirs, ":");
+    CStringTokenizer tokenizer(xdg_data_dirs,
+                               xdg_data_dirs + strlen(xdg_data_dirs), ":");
     while (tokenizer.GetNext()) {
       search_paths.push_back(tokenizer.token());
     }
   }
 
   std::string template_filename(GetDesktopName());
   for (std::vector<std::string>::const_iterator i = search_paths.begin();
        i != search_paths.end(); ++i) {
     FilePath path = FilePath(*i).Append(template_filename);
     if (file_util::PathExists(path))
@@ skipping 160 matching lines @@
     }
   }
   return output_buffer;
 }
 
 void ShellIntegration::CreateDesktopShortcut(const GURL& url,
                                              const string16& title) {
   g_browser_process->file_thread()->message_loop()->PostTask(FROM_HERE,
       new CreateDesktopShortcutTask(url, title));
 }