Renamed chrome_auth to cloud_print.

chrome/common/extensions/api/cloud_print_private.json

 // 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.
 
 [
   {
-    "namespace": "chromeAuthPrivate",
+    "namespace": "cloudPrintPrivate",
     "nodoc": "true",
     "functions": [
       {
-        "name": "setCloudPrintCredentials",
+        "name": "setCredentials",
         "description": "Sets the login credentials for Cloud Print.",
         "type": "function",
         "parameters": [
           {
             "name": "userEmail",
             "type": "string",
             "description": "The email address of the user."
           },
           {
             "name": "robotEmail",
@@ skipping 17 matching lines @@
                 "description": "A string result code. The value is non-empty on success only in tests.",
                 "optional": "true"
               }
             ]
           }
         ]
       }
     ]
   }
 ]