Simplify logic behind chrome.audio.setActiveDevices

extensions/browser/api/audio/audio_api.cc

Index: extensions/browser/api/audio/audio_api.cc
diff --git a/extensions/browser/api/audio/audio_api.cc b/extensions/browser/api/audio/audio_api.cc
index 39614ccdb4f1a2d0e8e67501c52f45a4286428de..89389054a6d427a802ef894a466cca5591238df7 100644
--- a/extensions/browser/api/audio/audio_api.cc
+++ b/extensions/browser/api/audio/audio_api.cc
@@ -99,6 +99,23 @@ ExtensionFunction::ResponseAction AudioGetInfoFunction::Run() {
 
 ///////////////////////////////////////////////////////////////////////////////
 
+ExtensionFunction::ResponseAction AudioSetActiveDeviceListsFunction::Run() {
+  std::unique_ptr<audio::SetActiveDeviceLists::Params> params(
+      audio::SetActiveDeviceLists::Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params.get());
+
+  AudioService* service =
+      AudioAPI::GetFactoryInstance()->Get(browser_context())->GetService();
+  DCHECK(service);
+
+  if (!service->SetActiveDeviceLists(params->ids.input, params->ids.output)) {
+    return RespondNow(Error("Failed to set active devices."));
+  }
+  return RespondNow(NoArguments());
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
 ExtensionFunction::ResponseAction AudioSetActiveDevicesFunction::Run() {
   std::unique_ptr<audio::SetActiveDevices::Params> params(
       audio::SetActiveDevices::Params::Create(*args_));