Pass task runners to AudioManager constructor.

content/browser/renderer_host/media/media_stream_manager_unittest.cc

Index: content/browser/renderer_host/media/media_stream_manager_unittest.cc
diff --git a/content/browser/renderer_host/media/media_stream_manager_unittest.cc b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
index a48700a878193deea270f5085d574dc358a4f826..d2d923329d93f890940820db7a53d5b0bc56c860 100644
--- a/content/browser/renderer_host/media/media_stream_manager_unittest.cc
+++ b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
@@ -71,7 +71,9 @@ ResourceContext::SaltCallback GetMockSaltCallback() {
 class MockAudioManager : public AudioManagerPlatform {
  public:
   MockAudioManager()
-      : AudioManagerPlatform(&fake_audio_log_factory_),
+      : AudioManagerPlatform(base::ThreadTaskRunnerHandle::Get(),
+                             base::ThreadTaskRunnerHandle::Get(),
+                             &fake_audio_log_factory_),
         num_output_devices_(2) {}
   ~MockAudioManager() override {}
 
@@ -210,7 +212,7 @@ class MediaStreamManagerTest : public ::testing::Test {
         security_origin, callback);
   }
 
-  scoped_ptr<MockAudioManager> audio_manager_;
+  scoped_ptr<MockAudioManager, media::AudioManagerDeleter> audio_manager_;
   scoped_ptr<MediaStreamManager> media_stream_manager_;
   content::TestBrowserThreadBundle thread_bundle_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;