Prepare declarativeContent API for new script injection feature. Added Javascript types and functio…

extensions/common/watched_pages_recipient.h

Index: extensions/common/watched_pages_recipient.h
diff --git a/extensions/common/watched_pages_recipient.h b/extensions/common/watched_pages_recipient.h
new file mode 100644
index 0000000000000000000000000000000000000000..dad3e936efe633f985721b8eafa8fedcc23e9697
--- /dev/null
+++ b/extensions/common/watched_pages_recipient.h
@@ -0,0 +1,18 @@
+// 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 EXTENSIONS_COMMON_WATCHED_PAGES_RECIPIENT_H_
+#define EXTENSIONS_COMMON_WATCHED_PAGES_RECIPIENT_H_
+
+namespace extensions {
+
+enum WatchedPagesRecipient {
+  CONTENT_RULES_REGISTRY = 0,
+  USER_SCRIPT_MANAGER,
+  WATCHED_PAGES_RECIPIENT_LAST = USER_SCRIPT_MANAGER,
+};
+
+}
+
+#endif  // EXTENSIONS_COMMON_WATCHED_PAGES_RECIPIENT_H_