Ensures that audio tasks cannot run after AudioManager is deleted.

content/public/browser/content_browser_client.cc

 // Copyright (c) 2012 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/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "base/guid.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/browser/memory_coordinator_delegate.h"
 #include "content/public/browser/navigation_ui_data.h"
 #include "content/public/browser/vpn_service_proxy.h"
 #include "content/public/common/sandbox_type.h"
+#include "media/audio/audio_manager.h"
 #include "media/base/cdm_factory.h"
 #include "media/media_features.h"
 #include "storage/browser/quota/quota_manager.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
 namespace content {
 
 BrowserMainParts* ContentBrowserClient::CreateBrowserMainParts(
     const MainFunctionParams& parameters) {
@@ skipping 81 matching lines @@
   return false;
 }
 
 bool ContentBrowserClient::ShouldSwapBrowsingInstancesForNavigation(
     SiteInstance* site_instance,
     const GURL& current_url,
     const GURL& new_url) {
   return false;
 }
 
-media::ScopedAudioManagerPtr ContentBrowserClient::CreateAudioManager(
+std::unique_ptr<media::AudioManager> ContentBrowserClient::CreateAudioManager(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
     media::AudioLogFactory* audio_log_factory) {
   return nullptr;
 }
 
 std::unique_ptr<media::CdmFactory> ContentBrowserClient::CreateCdmFactory() {
   return nullptr;
 }
 
 bool ContentBrowserClient::ShouldSwapProcessesForRedirect(
     BrowserContext* browser_context,
@@ skipping 320 matching lines @@
 
 bool ContentBrowserClient::ShouldRedirectDOMStorageTaskRunner() {
   return false;
 }
 
 bool ContentBrowserClient::RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
   return false;
 }
 
 }  // namespace content