Move chrome.downloads out of experimental to dev

chrome/common/extensions/api/experimental_socket.idl

 // Copyright (c) 2012 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.
 
-// File-level comment to appease parser. Eventually this will not be necessary.
-
 [nodoc] namespace experimental.socket {
   enum SocketType {
     tcp,
     udp
   };
 
   // The socket options.
   dictionary CreateOptions {
     // The schema generator does not support dictionaries without any fields.
     // Ignore this field.
@@ skipping 143 matching lines @@
     // Enable/disable Nagle algorithm.
     // |socketId| : The socketId.
     // |noDelay| : If true, disable Nagle algorithm.
     // |callback| : Called when the setNoDelay attempt is complete.
     static void setNoDelay(long socketId,
                            boolean noDelay,
                            SetNoDelayCallback callback);
   };
 
 };