Renable tabCapture.ApiTests* now that fix landed in r191910.

chrome/test/data/extensions/api_test/tab_capture/experimental/api_tests.js

 // 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.
 
 var tabCapture = chrome.tabCapture;
 
 chrome.test.runTests([
   function captureTabAndVerifyStateTransitions() {
     // Tab capture events in the order they happen.
     var tabCaptureEvents = [];
@@ skipping 74 matching lines @@
   },
 
   function onlyVideo() {
     tabCapture.capture({video: true}, function(stream) {
       chrome.test.assertTrue(!!stream);
       stream.stop();
       chrome.test.succeed();
     });
   },
 
-  function onlyAudio() {
-    tabCapture.capture({audio: true}, function(stream) {
-      chrome.test.assertTrue(!!stream);
-      stream.stop();
-      chrome.test.succeed();
-    });
-  },
-
   function noAudioOrVideoRequested() {
     // If not specified, video is not requested.
     tabCapture.capture({audio: false}, function(stream) {
       chrome.test.assertTrue(!stream);
       chrome.test.succeed();
     });
-  },
-
-  function invalidAudioConstraints() {
-    var tabCaptureListener = function(info) {
-      if (info.status == 'stopped') {
-        tabCapture.onStatusChanged.removeListener(tabCaptureListener);
-
-        tabCapture.capture({audio: true, video: true}, function(stream) {
-          chrome.test.assertTrue(!!stream);
-          chrome.test.succeed();
-        });
-      }
-    };
-    tabCapture.onStatusChanged.addListener(tabCaptureListener);
-
-    tabCapture.capture({audio: true,
-                        audioConstraints: {
-                          'mandatory': {
-                            'notValid': '123'
-                          }
-                        }}, function(stream) {
-                          chrome.test.assertTrue(!stream);
-                        });
   }
 
 ]);