Add API tests to the experimental Speech Input API.

chrome/test/data/extensions/api_test/speech_input/start_error/test.js

Index: chrome/test/data/extensions/api_test/speech_input/start_error/test.js
diff --git a/chrome/test/data/extensions/api_test/speech_input/start_error/test.js b/chrome/test/data/extensions/api_test/speech_input/start_error/test.js
new file mode 100644
index 0000000000000000000000000000000000000000..39a8831f772d741e261e09d329b0c2f14602d45e
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/speech_input/start_error/test.js
@@ -0,0 +1,37 @@
+// Copyright (c) 2011 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.
+
+// Extension Speech Input api test.
+// browser_tests --gtest_filter="ExtensionSpeechInputApiTest.*"
+
+chrome.test.runTests([
+  function testSpeechInputStartError() {
+
+    // Recording is not active, start it.
+    chrome.experimental.speechInput.isRecording(function(recording) {
+      chrome.test.assertNoLastError();
+      chrome.test.assertFalse(recording);
+      chrome.experimental.speechInput.start({}, started);
+    });
+
+    // Start should fail because no devices are available.
+    function started() {
+      chrome.test.assertEq(chrome.extension.lastError.message,
+          "noRecordingDeviceFound");
+
+      // Recording shouldn't have started.
+      chrome.experimental.speechInput.isRecording(function(recording) {
+        chrome.test.assertNoLastError();
+        chrome.test.assertFalse(recording);
+
+        // Stopping should fail since we're back in the idle state.
+        chrome.experimental.speechInput.stop(function() {
+          chrome.test.assertEq(chrome.extension.lastError.message,
+              "invalidOperation");
+          chrome.test.succeed();
+        });
+      });
+    }
+  }
+]);