Propagate muted state from MediaStreamAudioSource into JS.

content/test/data/media/webrtc_test_utilities.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.
 
 // These must match with how the video and canvas tags are declared in html.
 const VIDEO_TAG_WIDTH = 320;
 const VIDEO_TAG_HEIGHT = 240;
 
 // Fake video capture background green is of value 135.
 const COLOR_BACKGROUND_GREEN = 135;
 
 // Number of test events to occur before the test pass. When the test pass,
 // the function gAllEventsOccured is called.
 var gNumberOfExpectedEvents = 0;
 
 // Number of events that currently have occurred.
 var gNumberOfEvents = 0;
 
 var gAllEventsOccured = function () {};
 
+var gPendingTimeout;
+
 // Use this function to set a function that will be called once all expected
 // events has occurred.
 function setAllEventsOccuredHandler(handler) {
   gAllEventsOccured = handler;
 }
 
 // Tells the C++ code we succeeded, which will generally exit the test.
 function reportTestSuccess() {
   console.log('Test Success');
   window.domAutomationController.send('OK');
 }
 
 // Returns a custom return value to the test.
 function sendValueToTest(value) {
   window.domAutomationController.send(value);
 }
 
 // Immediately fails the test on the C++ side.
 function failTest(reason) {
   var error = new Error(reason);
   window.domAutomationController.send(error.stack);
 }
 
+// Fail a test on the C++ side after a timeout. Will cancel any pending timeout.
+function failTestAfterTimeout(reason, timeout_ms) {
+  cancelTestTimeout();
+  gPendingTimeout = setTimeout(function() {
+    failTest(reason);
+  }, timeout_ms);
+}
+
+// Cancels the current test timeout.
+function cancelTestTimeout() {
+  clearTimeout(gPendingTimeout);
+  gPendingTimeout = null;
+}
+
 // Called if getUserMedia fails.
 function printGetUserMediaError(error) {
   var message = 'getUserMedia request unexpectedly failed:';
   if (error.constraintName)
     message += ' could not satisfy constraint ' + error.constraintName;
   else
     message += ' devices not working/user denied access.';
   failTest(message);
 }
 
@@ skipping 201 matching lines @@
   if (actual === expected) {
     failTest("expected '" + expected + "', got '" + actual + "'.");
   }
 }
 
 function assertTrue(booleanExpression, description) {
   if (!booleanExpression) {
     failTest(description);
   }
 }
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