Revert of Switching AudioOutputAuthorizationHandler from using AudioManager interface to AudioSystem one.

content/browser/renderer_host/media/audio_renderer_host_unittest.cc

Index: content/browser/renderer_host/media/audio_renderer_host_unittest.cc
diff --git a/content/browser/renderer_host/media/audio_renderer_host_unittest.cc b/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
index 8d44ee63fbef2c90ee04538189ed693baebe7ecb..41d6ffb367814d179de470a8976fbf5d5f95499b 100644
--- a/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
+++ b/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
@@ -26,7 +26,6 @@
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "ipc/ipc_message_utils.h"
-#include "media/audio/audio_system_impl.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/audio/fake_audio_manager.h"
 #include "media/base/bind_to_current_loop.h"
@@ -129,13 +128,11 @@
   MockAudioRendererHost(base::RunLoop* auth_run_loop,
                         int render_process_id,
                         media::AudioManager* audio_manager,
-                        media::AudioSystem* audio_system,
                         AudioMirroringManager* mirroring_manager,
                         MediaStreamManager* media_stream_manager,
                         const std::string& salt)
       : AudioRendererHost(render_process_id,
                           audio_manager,
-                          audio_system,
                           mirroring_manager,
                           media_stream_manager,
                           salt),
@@ -238,15 +235,13 @@
         audio_manager_(base::MakeUnique<FakeAudioManagerWithAssociations>(
             base::ThreadTaskRunnerHandle::Get(),
             log_factory.get())),
-        audio_system_(media::AudioSystemImpl::Create(audio_manager_.get())),
         render_process_host_(&browser_context_, &auth_run_loop_) {
     base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kUseFakeDeviceForMediaStream);
     media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
     host_ = new MockAudioRendererHost(
         &auth_run_loop_, render_process_host_.GetID(), audio_manager_.get(),
-        audio_system_.get(), &mirroring_manager_, media_stream_manager_.get(),
-        kSalt);
+        &mirroring_manager_, media_stream_manager_.get(), kSalt);
 
     // Simulate IPC channel connected.
     host_->set_peer_process_for_testing(base::Process::Current());
@@ -516,7 +511,6 @@
   TestBrowserContext browser_context_;
   std::unique_ptr<media::FakeAudioLogFactory> log_factory;
   std::unique_ptr<FakeAudioManagerWithAssociations> audio_manager_;
-  std::unique_ptr<media::AudioSystem> audio_system_;
   MockAudioMirroringManager mirroring_manager_;
   base::RunLoop auth_run_loop_;
   MockRenderProcessHostWithSignaling render_process_host_;