Allow webkitSpeechRecognition work from an app's background page.

chrome/browser/apps/speech_recognition_browsertest.cc

+// Copyright 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.
+
+#include "chrome/browser/apps/app_browsertest_util.h"
+
+class SpeechRecognitionTest : public extensions::PlatformAppBrowserTest {
+};
+
+IN_PROC_BROWSER_TEST_F(SpeechRecognitionTest, SpeechFromBackgroundPage) {
+  ASSERT_TRUE(RunPlatformAppTest("platform_apps/speech/background_page"))
+      << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(SpeechRecognitionTest,
+                       SpeechFromBackgroundPageWithoutPermission) {
+  ASSERT_TRUE(
+      RunPlatformAppTest("platform_apps/speech/background_page_no_permission"))
+          << message_;
+}