Move language detection to a component

components/translate/common/translate_switches.cc

Index: components/translate/common/translate_switches.cc
diff --git a/components/translate/common/translate_switches.cc b/components/translate/common/translate_switches.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4959b83b5fe59639f5dbc49c5d1e5b097aac230a
--- /dev/null
+++ b/components/translate/common/translate_switches.cc
@@ -0,0 +1,12 @@
+// Copyright 2013 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 "components/translate/common/translate_switches.h"
+
+namespace translate {
+
+// Overrides security-origin with which Translate runs in an isolated world.
+const char kTranslateSecurityOrigin[] = "translate-security-origin";
+
+}  // namespace translate