Looking up device id by session id for AudioRendererMixerInput

content/renderer/media/audio_device_factory.cc

Index: content/renderer/media/audio_device_factory.cc
diff --git a/content/renderer/media/audio_device_factory.cc b/content/renderer/media/audio_device_factory.cc
index f36cf4b2d43a42ccefc027c48a454917490d4274..b3bc58d2c41b9694559b96bfd78b54121fc3b0fd 100644
--- a/content/renderer/media/audio_device_factory.cc
+++ b/content/renderer/media/audio_device_factory.cc
@@ -47,12 +47,13 @@ bool IsMixable(AudioDeviceFactory::SourceType source_type) {
 
 scoped_refptr<media::SwitchableAudioRendererSink> NewMixableSink(
     int render_frame_id,
+    int session_id,
     const std::string& device_id,
     const url::Origin& security_origin) {
   RenderThreadImpl* render_thread = RenderThreadImpl::current();
   return scoped_refptr<media::AudioRendererMixerInput>(
       render_thread->GetAudioRendererMixerManager()->CreateInput(
-          render_frame_id, device_id, security_origin));
+          render_frame_id, session_id, device_id, security_origin));
 }
 
 scoped_refptr<media::AudioRendererSink> NewUnmixableSink(
@@ -100,7 +101,8 @@ AudioDeviceFactory::NewAudioRendererSink(SourceType source_type,
   }
 
   if (IsMixable(source_type))
-    return NewMixableSink(render_frame_id, device_id, security_origin);
+    return NewMixableSink(render_frame_id, session_id, device_id,
+                          security_origin);
 
   return NewUnmixableSink(render_frame_id, session_id, device_id,
                           security_origin);
@@ -124,7 +126,8 @@ AudioDeviceFactory::NewSwitchableAudioRendererSink(
   }
 
   if (IsMixable(source_type))
-    return NewMixableSink(render_frame_id, device_id, security_origin);
+    return NewMixableSink(render_frame_id, session_id, device_id,
+                          security_origin);
 
   // AudioOutputDevice is not RestartableAudioRendererSink, so we can't return
   // anything for those who wants to create an unmixable sink.