Run jshint over all JavaScript files

ports/gdb/tests/common.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.
  */
 
+/* globals chrometest, ASSERT_NE, ASSERT_FALSE */
+
 'use strict';
 
 /**
  * Wait until a certain number of NaCl modules start/stop.
  * Waits until the number of extra modules vs a snapshot equals a certain
  * number. Also, waits until the debug port is known.
  * @param {integer} count Number of modules in addition to the snapshot to
  *     wait for.
  * @param {Object.<integer, ProcessInfo>} snapshot A snapshot of the the
  *     process set from getAllProcesses.
@@ skipping 53 matching lines @@
 function moduleMessageWaiter(module) {
   var waiter;
   function handleMessage(msg) {
     waiter.enqueue(Promise.resolve(msg));
   }
   waiter = new chrometest.PortlikeWaiter(function() {
     module.removeEventListener(handleMessage);
   }, module);
   module.addEventListener('message', handleMessage, true);
   return waiter;
-};
+}
 
 
 /**
  * Wait for a message other the name 'message' (from terminal).
  * @param {Port} portLike a port like waiter object to wait on.
  * @return {Promise} Promise to wait for a message.
  */
 function waitIgnoringTerminal(portLike) {
   function waitForReply(msg) {
     // Ignore terminal messages.
@@ skipping 33 matching lines @@
     // jsonify the DOM element.
     ASSERT_FALSE(null === self.rawObject, 'there must be a DOM element');
   });
 };
 
 TestModuleTest.prototype.tearDown = function() {
   var self = this;
   // Wait for the test module to exit.
   return waitForExtraModuleCount(0, self.initialProcesses).then(function() {
     // Remove node.
-    if (self.object != null) {
+    if (self.object !== null) {
       var object = self.object.detach();
       self.object = null;
       self.rawObject = null;
       var p = object.parentNode;
       p.removeChild(object);
     }
     return chrometest.Test.prototype.tearDown.call(self);
   });
 };