Componentize component_updater: Move some paths/constants to component.

components/component_updater/common/component_updater_constants.h

Index: components/component_updater/common/component_updater_constants.h
diff --git a/components/component_updater/common/component_updater_constants.h b/components/component_updater/common/component_updater_constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..a0d817927bee52f185ff2e0e7f30605d8290018f
--- /dev/null
+++ b/components/component_updater/common/component_updater_constants.h
@@ -0,0 +1,16 @@
+// 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 COMPONENTS_COMPONENT_UPDATER_COMMON_COMPONENT_UPDATER_CONSTANTS_H_
+#define COMPONENTS_COMPONENT_UPDATER_COMMON_COMPONENT_UPDATER_CONSTANTS_H_
+
+#include "base/files/file_path.h"
+
+namespace component_updater {
+
+extern const base::FilePath::CharType kCLDDataFilename[];
+
+}  // namespace component_updater
+
+#endif  // COMPONENTS_COMPONENT_UPDATER_COMMON_COMPONENT_UPDATER_CONSTANTS_H_