WebRTC Audio private API: removing WebRtcAudioPrivate(Set/Get)ActiveSinkFunction

content/public/test/mock_render_process_host.h

Index: content/public/test/mock_render_process_host.h
diff --git a/content/public/test/mock_render_process_host.h b/content/public/test/mock_render_process_host.h
index 8126ff84fa1387037771597810151e0f78ddc4fd..58c123c1347cb9f2a4d86208f3af68018d636f66 100644
--- a/content/public/test/mock_render_process_host.h
+++ b/content/public/test/mock_render_process_host.h
@@ -140,9 +140,6 @@ class MockRenderProcessHost : public RenderProcessHost {
     process_handle = std::move(new_handle);
   }
 
-  void GetAudioOutputControllers(
-      const GetAudioOutputControllersCallback& callback) const override {}
-
   void SetRemoteInterfaces(
       std::unique_ptr<service_manager::InterfaceProvider> remote_interfaces) {
     remote_interfaces_ = std::move(remote_interfaces);