1 files changed, 34 insertions, 0 deletions
diff --git a/chrome/test/test_launcher_utils.cc b/chrome/test/test_launcher_utils.cc
new file mode 100644
index 0000000..d5ccd18
--- /dev/null
+++ b/chrome/test/test_launcher_utils.cc
@@ -0,0 +1,34 @@
+// 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 "base/environment.h"
+#include "base/path_service.h"
+#include "base/scoped_ptr.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/test/test_launcher_utils.h"
+
+namespace test_launcher_utils {
+
+bool OverrideUserDataDir(const FilePath& user_data_dir) {
+  bool success = true;
+
+  // PathService::Override() is the best way to change the user data directory.
+  // This matches what is done in ChromeMain().
+  success = PathService::Override(chrome::DIR_USER_DATA, user_data_dir);
+
+#if defined(OS_LINUX)
+  // Make sure the cache directory is inside our clear profile. Otherwise
+  // the cache may contain data from earlier tests that could break the
+  // current test.
+  //
+  // Note: we use an environment variable here, because we have to pass the
+  // value to the child process. This is the simplest way to do it.
+  scoped_ptr<base::Environment> env(base::Environment::Create());
+  success = success && env->SetVar("XDG_CACHE_HOME", user_data_dir.value());
+#endif
+
+  return success;
+}
+
+}  // namespace test_launcher_utils