DevTools: use semicolons after each statement.

third_party/WebKit/Source/devtools/front_end/common/OutputStream.js

 // Copyright 2015 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.
 
 /**
  * @interface
  */
 WebInspector.OutputStream = function()
 {
-}
+};
 
 WebInspector.OutputStream.prototype = {
     /**
      * @param {string} data
      * @param {function(!WebInspector.OutputStream)=} callback
      */
     write: function(data, callback) { },
 
     close: function() { }
-}
+};
 
 /**
  * @constructor
  * @implements {WebInspector.OutputStream}
  */
 WebInspector.StringOutputStream = function()
 {
     this._data = "";
-}
+};
 
 WebInspector.StringOutputStream.prototype = {
     /**
      * @override
      * @param {string} chunk
      * @param {function(!WebInspector.OutputStream)=} callback
      */
     write: function(chunk, callback)
     {
         this._data += chunk;
     },
 
     /**
      * @override
      */
     close: function()
     {
     },
 
     /**
      * @return {string}
      */
     data: function()
     {
         return this._data;
     }
-}
+};