Coverity: Fix leaking UCharsetDetector in ftp code.

net/ftp/ftp_directory_listing_buffer_unittest.cc

 // Copyright (c) 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 "net/ftp/ftp_directory_listing_buffer.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_tokenizer.h"
 #include "base/string_util.h"
 #include "net/base/net_errors.h"
 #include "net/ftp/ftp_directory_listing_parsers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 TEST(FtpDirectoryListingBufferTest, Parse) {
   const char* test_files[] = {
     "dir-listing-ls-1",
+    "dir-listing-ls-1-utf8",
     "dir-listing-ls-2",
     "dir-listing-vms-1",
     "dir-listing-vms-2",
     "dir-listing-vms-3",
     "dir-listing-vms-4",
   };
 
   FilePath test_dir;
   PathService::Get(base::DIR_SOURCE_ROOT, &test_dir);
   test_dir = test_dir.AppendASCII("net");
@@ skipping 68 matching lines @@
       EXPECT_EQ(hour, time_exploded.hour);
       EXPECT_EQ(minute, time_exploded.minute);
       EXPECT_EQ(0, time_exploded.second);
       EXPECT_EQ(0, time_exploded.millisecond);
     }
     EXPECT_FALSE(buffer.EntryAvailable());
   }
 }
 
 }  // namespace