Moving SwitchOutputDevice out of OutputDevice interface, eliminating OutputDevice

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 d43a16fb5b1b927eab078c7fb7f952b02aafe3b6..a657a6a8a0821f02fd311ef1cfa7fdfd7728b605 100644
--- a/media/blink/webaudiosourceprovider_impl.cc
+++ b/media/blink/webaudiosourceprovider_impl.cc
@@ -87,7 +87,7 @@ class WebAudioSourceProviderImpl::TeeFilter
 };
 
 WebAudioSourceProviderImpl::WebAudioSourceProviderImpl(
-    const scoped_refptr<RestartableAudioRendererSink>& sink)
+    const scoped_refptr<SwitchableAudioRendererSink>& sink)
     : volume_(1.0),
       state_(kStopped),
       client_(nullptr),
@@ -204,6 +204,17 @@ OutputDevice* WebAudioSourceProviderImpl::GetOutputDevice() {
   return sink_->GetOutputDevice();
 }
 
+void WebAudioSourceProviderImpl::SwitchOutputDevice(
+    const std::string& device_id,
+    const url::Origin& security_origin,
+    const OutputDeviceStatusCB& callback) {
+  base::AutoLock auto_lock(sink_lock_);
+  if (client_)
+    callback.Run(media::OUTPUT_DEVICE_STATUS_ERROR_INTERNAL);
+  else
+    sink_->SwitchOutputDevice(device_id, security_origin, callback);
+}
+
 void WebAudioSourceProviderImpl::Initialize(const AudioParameters& params,
                                             RenderCallback* renderer) {
   base::AutoLock auto_lock(sink_lock_);