Ensures that audio tasks cannot run after AudioManager is deleted.

chromecast/browser/cast_content_browser_client.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 "chromecast/browser/cast_content_browser_client.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 173 matching lines @@
 CastContentBrowserClient::media_resource_tracker() {
   return cast_browser_main_parts_->media_resource_tracker();
 }
 
 media::MediaPipelineBackendManager*
 CastContentBrowserClient::media_pipeline_backend_manager() {
   DCHECK(cast_browser_main_parts_);
   return cast_browser_main_parts_->media_pipeline_backend_manager();
 }
 
-::media::ScopedAudioManagerPtr CastContentBrowserClient::CreateAudioManager(
+std::unique_ptr<::media::AudioManager>
+CastContentBrowserClient::CreateAudioManager(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
     ::media::AudioLogFactory* audio_log_factory) {
-  return ::media::ScopedAudioManagerPtr(new media::CastAudioManager(
-      GetMediaTaskRunner(), GetMediaTaskRunner(), audio_log_factory,
-      media_pipeline_backend_manager()));
+  return base::MakeUnique<media::CastAudioManager>(
+      task_runner, worker_task_runner, audio_log_factory,
+      media_pipeline_backend_manager());
 }
 
 std::unique_ptr<::media::CdmFactory>
 CastContentBrowserClient::CreateCdmFactory() {
 #if defined(ENABLE_MOJO_MEDIA_IN_BROWSER_PROCESS)
   return base::MakeUnique<media::CastCdmFactory>(GetMediaTaskRunner(),
                                                  media_resource_tracker());
 #endif  // defined(ENABLE_MOJO_MEDIA_IN_BROWSER_PROCESS)
   return nullptr;
 }
@@ skipping 359 matching lines @@
         process_type, dumps_path, false /* upload */);
   // StartUploaderThread() even though upload is diferred.
   // Breakpad-related memory is freed in the uploader thread.
   crash_handler->StartUploaderThread();
   return crash_handler;
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace shell
 }  // namespace chromecast