Get mojo_shell building inside chromium checkout.

mojo/shell/filename_util.h

+// Copyright 2014 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.
+
+#ifndef SHELL_FILENAME_UTIL_H_
+#define SHELL_FILENAME_UTIL_H_
+
+class GURL;
+
+namespace base {
+class FilePath;
+}
+
+namespace mojo {
+namespace shell {
+
+// Given the full path to a file name, creates a file: URL. The returned URL
+// may not be valid if the input is malformed.
+GURL FilePathToFileURL(const base::FilePath& path);
+
+// This URL is going to be treated as a directory. Ensure there is a trailing
+// slash so that GURL.Resolve(...) works correctly.
+GURL AddTrailingSlashIfNeeded(const GURL& url);
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // SHELL_FILENAME_UTIL_H_