Run jshint over all JavaScript files

chrome_test/tests/user_agent_test.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 TEST, EXPECT_EQ, ASSERT_EQ, EXPECT_TRUE */
+
 'use strict';
 
 TEST('UserAgentTest', 'testInTestMode', function() {
   var parts = navigator.userAgent.split(' ');
   ASSERT_EQ(2, parts.length, 'agent has 2 sections');
   EXPECT_EQ('ChromeTestAgent', parts[0].split('/')[0],
             'should have test agent string');
   EXPECT_EQ(32, parts[0].split('/')[1].length,
             'should be a 32 digit extension id');
   EXPECT_EQ('Chrome', parts[1].split('/')[0],
             'must have chrome agent string');
   EXPECT_TRUE(/^\d+$/.test(parts[1].split('/')[1]),
               'must have a version number (for hterm)');
 });