[Chromecast] Add new volume control API to CastMediaShlib

chromecast/media/service/cast_renderer.cc

Index: chromecast/media/service/cast_renderer.cc
diff --git a/chromecast/media/service/cast_renderer.cc b/chromecast/media/service/cast_renderer.cc
index f3bd681a8605aaef4ae59c9b7e44936ec514f403..48a2374bb487ffcb3fa22264b97ab29d734e11af 100644
--- a/chromecast/media/service/cast_renderer.cc
+++ b/chromecast/media/service/cast_renderer.cc
@@ -7,6 +7,7 @@
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
 #include "chromecast/base/task_runner_impl.h"
+#include "chromecast/media/base/audio_device_ids.h"
 #include "chromecast/media/base/video_mode_switcher.h"
 #include "chromecast/media/base/video_resolution_policy.h"
 #include "chromecast/media/cdm/cast_cdm_context.h"
@@ -15,8 +16,10 @@
 #include "chromecast/media/cma/base/demuxer_stream_adapter.h"
 #include "chromecast/media/cma/pipeline/media_pipeline_impl.h"
 #include "chromecast/media/cma/pipeline/video_pipeline_client.h"
+#include "chromecast/public/cast_media_shlib.h"
 #include "chromecast/public/media/media_pipeline_backend.h"
 #include "chromecast/public/media/media_pipeline_device_params.h"
+#include "media/audio/audio_device_description.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_log.h"
@@ -92,9 +95,19 @@ void CastRenderer::Initialize(::media::MediaResource* media_resource,
       (load_type == kLoadTypeMediaStream)
           ? MediaPipelineDeviceParams::kModeIgnorePts
           : MediaPipelineDeviceParams::kModeSyncPts;
-  MediaPipelineDeviceParams params(sync_type, backend_task_runner_.get());
+  AudioContentType content_type;
+  if (audio_device_id_ == kAlarmAudioDeviceId) {
+    content_type = AudioContentType::kAlarm;
+  } else if (audio_device_id_ ==
+             ::media::AudioDeviceDescription::kCommunicationsDeviceId) {
+    content_type = AudioContentType::kCommunication;
+  } else {
+    content_type = AudioContentType::kMedia;
+  }
+  MediaPipelineDeviceParams params(sync_type, backend_task_runner_.get(),
+                                   content_type, audio_device_id_);
   std::unique_ptr<MediaPipelineBackend> backend =
-      backend_factory_->CreateBackend(params, audio_device_id_);
+      backend_factory_->CreateBackend(params);
 
   // Create pipeline.
   MediaPipelineClient pipeline_client;