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

media/audio/audio_system_impl.cc

Index: media/audio/audio_system_impl.cc
diff --git a/media/audio/audio_system_impl.cc b/media/audio/audio_system_impl.cc
index a6c51a67d863a6086b33b9e470c97d1b8ebf4471..fdffa70fda0f70cbce1e60457eb2044e9287a254 100644
--- a/media/audio/audio_system_impl.cc
+++ b/media/audio/audio_system_impl.cc
@@ -7,7 +7,6 @@
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task_runner_util.h"
-#include "media/audio/audio_device_description.h"
 #include "media/audio/audio_manager.h"
 
 // Using base::Unretained for |audio_manager_| is safe since it is deleted after
@@ -22,27 +21,11 @@
   DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread());
 
   // TODO(olka): remove this when AudioManager::GetInputStreamParameters()
-  // returns invalid parameters if the device is not found.
+  // works this way on all the platforms.
   if (!audio_manager->HasAudioInputDevices())
     return AudioParameters();
 
   return audio_manager->GetInputStreamParameters(device_id);
-}
-
-AudioParameters GetOutputParametersOnDeviceThread(
-    AudioManager* audio_manager,
-    const std::string& device_id) {
-  DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread());
-
-  // TODO(olka): remove this when
-  // AudioManager::Get[Default]OutputStreamParameters() returns invalid
-  // parameters if the device is not found.
-  if (!audio_manager->HasAudioOutputDevices())
-    return AudioParameters();
-
-  return media::AudioDeviceDescription::IsDefaultDevice(device_id)
-             ? audio_manager->GetDefaultOutputStreamParameters()
-             : audio_manager->GetOutputStreamParameters(device_id);
 }
 
 }  // namespace
@@ -79,22 +62,6 @@
       std::move(on_params_cb));
 }
 
-void AudioSystemImpl::GetOutputStreamParameters(
-    const std::string& device_id,
-    OnAudioParamsCallback on_params_cb) const {
-  if (GetTaskRunner()->BelongsToCurrentThread()) {
-    GetTaskRunner()->PostTask(
-        FROM_HERE, base::Bind(on_params_cb, GetOutputParametersOnDeviceThread(
-                                                audio_manager_, device_id)));
-    return;
-  }
-  base::PostTaskAndReplyWithResult(
-      GetTaskRunner(), FROM_HERE,
-      base::Bind(&GetOutputParametersOnDeviceThread,
-                 base::Unretained(audio_manager_), device_id),
-      std::move(on_params_cb));
-}
-
 void AudioSystemImpl::HasInputDevices(OnBoolCallback on_has_devices_cb) const {
   if (GetTaskRunner()->BelongsToCurrentThread()) {
     GetTaskRunner()->PostTask(