Run jshint over all JavaScript files

ports/devenv/devenvwidget/devenvwidget.js

 /*
  * Copyright (c) 2014 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+'use strict';
+
 /*
  * This plugin allows clients to include a DevEnvWidget in a web page, which
  * uses GCC in the NaCl Development Environment extension to compile and run
  * the contents of a text input.
  *
  * Example usage:
  * var widget = new DevEnvWidget({
  *   source: document.getElementById('source'), // <textarea>
  *   run: document.getElementById('run'), // <button> or other clickable
  *   status: document.getElementById('status'), // <div> or other output area
@@ skipping 207 matching lines @@
       var handleMessage = function(response) {
         if (!response) {
           return;
         } else if (response.name === replyName) {
           self.port.onMessage.removeListener(handleMessage);
           resolve(response);
         } else if (response.name === errorName) {
           self.port.onMessage.removeListener(handleMessage);
           reject(new Error(response.error));
         }
-      }
+      };
       self.port.postMessage(msg);
       self.port.onMessage.addListener(handleMessage);
     });
   };
 
   // WidgetView controls the HTML elements that comprise the Widget.
   function WidgetView(args) {
     this.source = args.source;
     this.run = args.run;
     this.status = args.status;
@@ skipping 83 matching lines @@
     if (this.output) {
       this.output.classList.remove(WidgetView.STATUS_CSS_NOERROR);
       this.output.classList.remove(WidgetView.STATUS_CSS_ERROR);
       this.output.classList.add(view.cssClass);
     }
   };
 
   // Expose Widget to the outside.
   global['DevEnvWidget'] = Widget;
 })(window);