Add Pause and Resume to Web TTS & Extension TTS APIs

chrome/test/data/extensions/api_test/tts/pause_resume/test.js

+// Copyright (c) 2013 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.
+
+// TTS api test
+// browser_tests.exe --gtest_filter="TtsApiTest.*"
+
+chrome.test.runTests([
+  function testPauseBeforeSpeak() {
+    chrome.tts.pause();
+    chrome.tts.speak(
+        'test 1',
+        {
+         'enqueue': true,
+         'onEvent': function(event) {
+           if (event.type == 'end')
+             chrome.test.succeed();
+         }
+        });
+    chrome.tts.resume();
+  },
+  function testPauseDuringSpeak() {
+    chrome.tts.speak(
+        'test 2',
+        {
+         'onEvent': function(event) {
+           if (event.type == 'end')
+             chrome.test.succeed();
+         }
+        });
+    chrome.tts.pause();
+    chrome.tts.resume();
+  }
+]);