Add layout tests for the audio component of MediaStream Recording.

components/html_viewer/web_test_delegate_impl.cc

 // Copyright 2015 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 "components/html_viewer/web_test_delegate_impl.h"
 
 #include <iostream>
 
 #include "base/time/time.h"
 #include "cc/layers/texture_layer.h"
@@ skipping 300 matching lines @@
                    const std::string& permission_value,
                    const GURL& origin,
                    const GURL& embedding_origin) {
   NOTIMPLEMENTED();
 }
 
 void WebTestDelegateImpl::ResetPermissions() {
   NOTIMPLEMENTED();
 }
 
-bool WebTestDelegateImpl::AddMediaStreamSourceAndTrack(
+bool WebTestDelegateImpl::AddMediaStreamVideoSourceAndTrack(
     blink::WebMediaStream* stream) {
   NOTIMPLEMENTED();
   return false;
+}
+
+bool WebTestDelegateImpl::AddMediaStreamAudioSourceAndTrack(
+    blink::WebMediaStream* stream) {
+  NOTIMPLEMENTED();
+  return false;
 }
 
 cc::SharedBitmapManager* WebTestDelegateImpl::GetSharedBitmapManager() {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
 void WebTestDelegateImpl::DispatchBeforeInstallPromptEvent(
     int request_id,
     const std::vector<std::string>& event_platforms,
@@ skipping 11 matching lines @@
     const blink::WebPluginParams& params) {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
 void WebTestDelegateImpl::OnWebTestProxyBaseDestroy(
     test_runner::WebTestProxyBase* base) {
 }
 
 }  // namespace html_viewer