[Extensions] Convert APIs to use movable types [10]

extensions/browser/api/audio/audio_service.cc

Index: extensions/browser/api/audio/audio_service.cc
diff --git a/extensions/browser/api/audio/audio_service.cc b/extensions/browser/api/audio/audio_service.cc
index 0e21680e54b387389365e986062f286b68f6ac2b..ec4c7c131da1ee312a79aed35990683b694b1691 100644
--- a/extensions/browser/api/audio/audio_service.cc
+++ b/extensions/browser/api/audio/audio_service.cc
@@ -16,7 +16,7 @@ class AudioServiceImpl : public AudioService {
   void RemoveObserver(Observer* observer) override;
 
   // Start to query audio device information.
-  void StartGetInfo(const GetInfoCallback& callback) override;
+  bool GetInfo(OutputInfo* output_info_out, InputInfo* input_info_out) override;
   void SetActiveDevices(const DeviceIdList& device_list) override;
   bool SetDeviceProperties(const std::string& device_id,
                            bool muted,
@@ -36,10 +36,10 @@ AudioService* AudioService::CreateInstance() {
   return new AudioServiceImpl;
 }
 
-void AudioServiceImpl::StartGetInfo(const GetInfoCallback& callback) {
+bool AudioServiceImpl::GetInfo(OutputInfo* output_info_out,
+                               InputInfo* input_info_out) {
   // TODO: implement this for platforms other than Chrome OS.
-  if (!callback.is_null())
-    callback.Run(OutputInfo(), InputInfo(), false);
+  return false;
 }
 
 void AudioServiceImpl::SetActiveDevices(const DeviceIdList& device_list) {