WebSocket test server migration on ExtensionApiTest.WebSocket

chrome/common/extensions/api/test.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": "test",
     "nodoc": true,
     "types": [],
     "functions": [
@@ skipping 17 matching lines @@
                         "type": "integer",
                         "description": "The port on which the test server is listening.",
                         "minimum": 1024,
                         "maximum": 65535
                       }
                     }
                   },
                   "testDataDirectory": {
                     "type": "string",
                     "description": "file:/// URL for the API test data directory."
+                  },
+                  "testWebSocketPort": {
+                    "type": "integer",
+                    "description": "The port on which the test WebSocket server is listening.",
+                    "minimum": 0,
+                    "maximum": 65535
                   }
                 }
               }
             ]
           }
         ]
       },
       {
         "name": "notifyFail",
         "unprivileged": true,
@@ skipping 65 matching lines @@
             "properties": {
               "data": { "type": "string", "description": "Additional information." },
               "lastMessage": { "type": "boolean", "description": "True if this was the last message for this test" }
             }
           }
         ]
       }
     ]
   }
 ]