Move FilePathTest under test_dir_ so it gets cleaned up on TearDown.

base/file_util_unittest.cc

 // Copyright (c) 2006-2008 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 "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #include <shlobj.h>
@@ skipping 997 matching lines @@
     for (size_t j = 0; j < comps.size(); ++j) {
       result.append(comps[j]);
       if (j < comps.size() - 1)
         result.append(FILE_PATH_LITERAL("|"), 1);
     }
     EXPECT_EQ(kPathComponents[i].result, result);
   }
 }
 
 TEST_F(FileUtilTest, Contains) {
-  FilePath data_dir;
-  ASSERT_TRUE(PathService::Get(base::DIR_TEMP, &data_dir));
-  data_dir = data_dir.Append(FILE_PATH_LITERAL("FilePathTest"));
+  FilePath data_dir = test_dir_.Append(FILE_PATH_LITERAL("FilePathTest"));
 
   // Create a fresh, empty copy of this directory.
   if (file_util::PathExists(data_dir)) {
     ASSERT_TRUE(file_util::Delete(data_dir, true));
   }
   ASSERT_TRUE(file_util::CreateDirectory(data_dir));
 
   FilePath foo(data_dir.Append(FILE_PATH_LITERAL("foo")));
   FilePath bar(foo.Append(FILE_PATH_LITERAL("bar.txt")));
   FilePath baz(data_dir.Append(FILE_PATH_LITERAL("baz.txt")));
@@ skipping 25 matching lines @@
 #elif defined(OS_LINUX)
   EXPECT_FALSE(file_util::ContainsPath(foo,
       foo_caps.Append(FILE_PATH_LITERAL("bar.txt"))));
 #else
   // We can't really do this test on osx since the case-sensitivity of the
   // filesystem is configurable.
 #endif
 }
 
 }  // namespace