Introduce AudioRendererSink::IsOptimizedForHardwareParameters

media/blink/webaudiosourceprovider_impl.cc

Index: media/blink/webaudiosourceprovider_impl.cc
diff --git a/media/blink/webaudiosourceprovider_impl.cc b/media/blink/webaudiosourceprovider_impl.cc
index 4cace4314b4203352d45914770eafa38930597a3..2fb21392b414eeb023f9f62ffa07b5ecd5fe8501 100644
--- a/media/blink/webaudiosourceprovider_impl.cc
+++ b/media/blink/webaudiosourceprovider_impl.cc
@@ -252,10 +252,22 @@ bool WebAudioSourceProviderImpl::SetVolume(double volume) {
   return true;
 }
 
-OutputDeviceInfo WebAudioSourceProviderImpl::GetOutputDeviceInfo() {
+OutputDeviceInfo WebAudioSourceProviderImpl::GetOutputDeviceInfo(
+    const AudioParameters& preferred_params) {
   base::AutoLock auto_lock(sink_lock_);
-  return sink_ ? sink_->GetOutputDeviceInfo()
-               : OutputDeviceInfo(OUTPUT_DEVICE_STATUS_ERROR_NOT_FOUND);
+
+  OutputDeviceInfo sink_info = sink_->GetOutputDeviceInfo();

[o1ka, 2017/04/26 14:27:54]

What if |sink_| is nullptr?

[flim-chromium, 2017/04/26 16:24:09]

Fixed, thanks for spotting this!

+
+  if (client_) {
+    return OutputDeviceInfo(sink_info.device_id(), sink_info.device_status(),
+                            preferred_params);
+  }
+
+  if (sink_) {
+    return sink_info;
+  }
+
+  return OutputDeviceInfo(OUTPUT_DEVICE_STATUS_ERROR_NOT_FOUND);
 }
 
 bool WebAudioSourceProviderImpl::CurrentThreadIsRenderingThread() {