Set keyboard mic effect if available.

content/test/webrtc_content_browsertest_base.cc

 // Copyright 2014 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 "content/test/webrtc_content_browsertest_base.h"
 
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "media/base/media_switches.h"
 
+#if defined(OS_CHROMEOS)
+#include "chromeos/audio/cras_audio_handler.h"
+#endif
+
 namespace content {
 
 void WebRtcContentBrowserTest::SetUpCommandLine(CommandLine* command_line) {
   // We need fake devices in this test since we want to run on naked VMs. We
   // assume these switches are set by default in content_browsertests.
   ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kUseFakeDeviceForMediaStream));
   ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kUseFakeUIForMediaStream));
 
   // Always include loopback interface in network list, in case the test device
   // doesn't have other interfaces available.
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kAllowLoopbackInPeerConnection);
 }
 
 void WebRtcContentBrowserTest::SetUp() {
   EnablePixelOutput();
+#if defined(OS_CHROMEOS)
+    chromeos::CrasAudioHandler::InitializeForTesting();
+#endif
   ContentBrowserTest::SetUp();
 }
 
+void WebRtcContentBrowserTest::TearDown() {
+  ContentBrowserTest::TearDown();
+#if defined(OS_CHROMEOS)
+    chromeos::CrasAudioHandler::Shutdown();
+#endif
+}
+
 // Executes |javascript|. The script is required to use
 // window.domAutomationController.send to send a string value back to here.
 std::string WebRtcContentBrowserTest::ExecuteJavascriptAndReturnResult(
     const std::string& javascript) {
   std::string result;
   EXPECT_TRUE(ExecuteScriptAndExtractString(shell()->web_contents(),
                                             javascript,
                                             &result));
   return result;
 }
@@ skipping 30 matching lines @@
 
 void WebRtcContentBrowserTest::DisableOpusIfOnAndroid() {
 #if defined(OS_ANDROID)
   // Always force iSAC 16K on Android for now (Opus is broken).
   EXPECT_EQ("isac-forced",
             ExecuteJavascriptAndReturnResult("forceIsac16KInSdp();"));
 #endif
 }
 
 }  // namespace content