Replace misc. network stub flags with more flexible ones

chromeos/dbus/dbus_command_line_helper.h

+// Copyright (c) 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 CHROMEOS_DBUS_DBUS_COMMAND_LINE_HELPER_H_
+#define CHROMEOS_DBUS_DBUS_COMMAND_LINE_HELPER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "chromeos/chromeos_export.h"
+
+namespace dbus_command_line_helper {
+
+// Parses a single name,value pair. Returns 'true' if parsed successfully.
+typedef base::Callback<
+  bool(const std::string& arg0, const std::string& arg1)> ParseOptionCallback;
+
+// Parses a command line switch containing comma-separated name-value pairs.
+// Invokes |callback| for each name-value pair. Returns false only if the
+// option is not set in the command line.
+// Examples:
+//  Invokes |callback| once with ("foo", ""):
+//  --option=foo
+//  Invokes |callback| three times with ("foo", ""), ("bar", "1"), ("a", "b")
+//  --option=foo,bar=1,a=b
+CHROMEOS_EXPORT bool ParseOptions(const std::string& switch_name,
+                                  const ParseOptionCallback& callback);
+
+}  // namespace dbus_command_line_helper
+
+
+#endif  // CHROMEOS_DBUS_DBUS_COMMAND_LINE_HELPER_H_